diff --git a/CHANGES b/CHANGES
index 836bf4b9c..8376c0b36 100644
--- a/CHANGES
+++ b/CHANGES
@@ -21116,7 +21116,7 @@ Version 1.3.7  (September 3, 2001)
               typedef __name vector<T>;
               %enddef
 
-           An a specific instantiation is created in exactly the same way:
+           A specific instantiation is created in exactly the same way:
 
              %template(intvec) vector<int>;
 
diff --git a/Doc/Manual/Allegrocl.html b/Doc/Manual/Allegrocl.html
index ddb6fba55..c4d898130 100644
--- a/Doc/Manual/Allegrocl.html
+++ b/Doc/Manual/Allegrocl.html
@@ -155,7 +155,7 @@ SWIG directives. SWIG can be furnished with a header file, but an
 interface can also be generated without library headers by supplying a
 simple text file--called the interface file, which is typically named
 with a <tt>.i</tt> extension--containing any foreign declarations of
-identifiers you wish to use. The most common approach is to use a an
+identifiers you wish to use. The most common approach is to use an
 interface file with directives to parse the needed headers. A straight
 parse of library headers will result in usable code, but SWIG
 directives provides much freedom in how a user might tailor the
diff --git a/Doc/Manual/Android.html b/Doc/Manual/Android.html
index b295b5e04..726314228 100644
--- a/Doc/Manual/Android.html
+++ b/Doc/Manual/Android.html
@@ -409,7 +409,7 @@ All the steps required to compile and use a simple hierarchy of classes for shap
 
 <p>
 First create an Android project called <tt>SwigClass</tt> in a subdirectory called <tt>class</tt>.
-The steps below create and build a the JNI C++ app.
+The steps below create and build the JNI C++ app.
 Adjust the <tt>--target</tt> id as mentioned earlier in the <a href="Android.html#Android_examples_intro">Examples introduction</a>.
 </p>
 
diff --git a/Doc/Manual/CCache.html b/Doc/Manual/CCache.html
index d23b0cb2f..521184ff0 100644
--- a/Doc/Manual/CCache.html
+++ b/Doc/Manual/CCache.html
@@ -411,7 +411,7 @@ following conditions need to be met:
 
 
 <p>
-ccache was inspired by the compilercache shell script script written
+ccache was inspired by the compilercache shell script written
 by Erik Thiele and I would like to thank him for an excellent piece of
 work. See
 <a href="http://www.erikyyy.de/compilercache/">http://www.erikyyy.de/compilercache/</a>
diff --git a/Doc/Manual/CSharp.html b/Doc/Manual/CSharp.html
index 5be63a340..4eb855022 100644
--- a/Doc/Manual/CSharp.html
+++ b/Doc/Manual/CSharp.html
@@ -1772,7 +1772,7 @@ should pass the call on to <tt>CSharpDefaults.DefaultMethod(int)</tt>using the C
 
 
 <p>
-When using <a href="Modules.html#Modules">multiple modules</a> it is is possible to compile each SWIG generated wrapper
+When using <a href="Modules.html#Modules">multiple modules</a> it is possible to compile each SWIG generated wrapper
 into a different assembly.
 However, by default the generated code may not compile if 
 generated classes in one assembly use generated classes in another assembly.
diff --git a/Doc/Manual/D.html b/Doc/Manual/D.html
index 45b57e18b..1a317a005 100644
--- a/Doc/Manual/D.html
+++ b/Doc/Manual/D.html
@@ -280,7 +280,7 @@ class SomeClass : AnInterface, AnotherInterface {
   ...
 }
 </pre></div>
-    <p>For this to work, <tt>AnInterface</tt> and <tt>AnotherInterface</tt> have to be in scope. If SWIG is not in split proxy mode, this is already the case, but it it is, they have to be added to the import list via the <tt>dimports</tt> typemap. Additionally, the import statement depends on the package SWIG is configured to emit the modules to.</p>
+    <p>For this to work, <tt>AnInterface</tt> and <tt>AnotherInterface</tt> have to be in scope. If SWIG is not in split proxy mode, this is already the case, but if it is, they have to be added to the import list via the <tt>dimports</tt> typemap. Additionally, the import statement depends on the package SWIG is configured to emit the modules to.</p>
     <p>The <tt>$importtype</tt> macro helps you to elegantly solve this problem:</p>
 <div class="code"><pre>
 %typemap(dimports) RemoteMpe %{
diff --git a/Doc/Manual/Extending.html b/Doc/Manual/Extending.html
index bf70b69ac..358d02706 100644
--- a/Doc/Manual/Extending.html
+++ b/Doc/Manual/Extending.html
@@ -1576,7 +1576,7 @@ return the node for the first class member.
 
 <div class="indent">
 Returns the last child node.   You might use this if you wanted to append a new
-node to the of a class.
+node to the children of a class.
 </div>
 
 <p>
@@ -3164,7 +3164,7 @@ these kinds of problems.
 </p>
 
 <dt> <b>Examples/Makefile.in</b>
-<dd> Nothing special here; see comments at top the of this file
+<dd> Nothing special here; see comments at the top of this file
 and look to the existing languages for examples.
 
 <dt> <b>Examples/qux99/check.list</b>
diff --git a/Doc/Manual/Java.html b/Doc/Manual/Java.html
index e0178465c..fad2fc3d4 100644
--- a/Doc/Manual/Java.html
+++ b/Doc/Manual/Java.html
@@ -4105,7 +4105,7 @@ the exception specification or <code>%catches</code> feature.
 </p>
 
 <p>Note that the "directorthrows" typemaps are important
-only if it is important for the the exceptions passed through the C++
+only if it is important for the exceptions passed through the C++
 layer to be mapped to distinct C++ exceptions.  If director methods
 are being called by C++ code that is itself wrapped in a
 SWIG generated Java wrapper and access is always through this wrapper,
diff --git a/Doc/Manual/Php.html b/Doc/Manual/Php.html
index 7d3d33ac1..4e17db316 100644
--- a/Doc/Manual/Php.html
+++ b/Doc/Manual/Php.html
@@ -163,7 +163,7 @@ If the module is in PHP's default extension directory, you can omit the path.
 <p>
 For some SAPIs (for example, the CLI SAPI) you can instead use the
 <a href="http://php.net/manual/en/function.dl.php">dl() function</a> to load
-an extension at run time, by adding a like like this to the start of each
+an extension at run time, by adding a line like this to the start of each
 PHP script which uses your extension:
 </p>
 
diff --git a/Doc/Manual/Python.html b/Doc/Manual/Python.html
index 1b73c08b7..9b9e51455 100644
--- a/Doc/Manual/Python.html
+++ b/Doc/Manual/Python.html
@@ -6046,7 +6046,7 @@ zipimporter requires python-3.5.1 or newer to work with subpackages.
 
 <p>
 When SWIG creates wrappers from an interface file, say foo.i, two Python modules are
-created.  There is a pure Python module module (foo.py) and C/C++ code which is
+created.  There is a pure Python module (foo.py) and C/C++ code which is
 built and linked into a dynamically (or statically) loaded low-level module _foo
 (see the <a href="Python.html#Python_nn3">Preliminaries section</a> for details).  So, the interface
 file really defines two Python modules.   How these two modules are loaded is
diff --git a/Doc/Manual/SWIGPlus.html b/Doc/Manual/SWIGPlus.html
index 3e7860b9b..0667623bc 100644
--- a/Doc/Manual/SWIGPlus.html
+++ b/Doc/Manual/SWIGPlus.html
@@ -2779,7 +2779,7 @@ into two methods such that additional logic can be packed into the operations; C
 <tt>this[type key] { get { ... } set { ... }}</tt>, Python uses
 <tt>__getitem__</tt> and <tt>__setitem__</tt>, etc. In C++ if the return
 type of <tt>operator[]</tt> is a reference and the method is const, it is often indicative of the <i>setter</i>,
-and and the <i>getter</i> is usually a const function return an object by value.
+and the <i>getter</i> is usually a const function return an object by value.
 In the absence of any hard and fast rules and the fact that there may be multiple index operators,
 it is up to the user to choose the getter and setter to use by using %rename as shown earlier.
 </p>
diff --git a/Doc/Manual/Scilab.html b/Doc/Manual/Scilab.html
index 14e03ff18..44c570b9b 100644
--- a/Doc/Manual/Scilab.html
+++ b/Doc/Manual/Scilab.html
@@ -1136,7 +1136,7 @@ But we can use either use the <tt>get_perimeter()</tt> function of the parent cl
 As explained in <a href="SWIGPlus.html#SWIGPlus_overloaded_methods">6.15</a> SWIG provides support for overloaded functions and constructors.
 </p>
 
-<p>As SWIG knows pointer types, the overloading works also with pointer types, here is is an example with a function <tt>magnify</tt> overloaded for the previous classes <tt>Shape</tt> and <tt>Circle</tt>:
+<p>As SWIG knows pointer types, the overloading works also with pointer types, here is an example with a function <tt>magnify</tt> overloaded for the previous classes <tt>Shape</tt> and <tt>Circle</tt>:
 </p>
 
 <div class="code"><pre>
@@ -1620,11 +1620,11 @@ void printArray(int values[], int len) {
 
 
 <p>
-There are no specific typemaps for pointer-to-pointers, they are are mapped as pointers in Scilab.
+There are no specific typemaps for pointer-to-pointers, they are mapped as pointers in Scilab.
 </p>
 
 <p>
-Pointer-to-pointers are sometimes used to implement matrices in C. The following is a an example of this:
+Pointer-to-pointers are sometimes used to implement matrices in C. The following is an example of this:
 </p>
 
 
@@ -2062,7 +2062,7 @@ In this mode, the following SWIG options may be used to setup the build:
 Let's give an example how to build a module <tt>example</tt>, composed of two sources, and using a library dependency:
 </p>
 <ul>
-<li>the sources are <tt>baa1.c</tt> and <tt>baa2.c</tt> (and are stored in in the current directory)</li>
+<li>the sources are <tt>baa1.c</tt> and <tt>baa2.c</tt> (and are stored in the current directory)</li>
 <li>the library is <tt>libfoo</tt> in <tt>/opt/foo</tt> (headers stored in <tt>/opt/foo/include</tt>, and shared library in <tt>/opt/foo/lib</tt>)</li>
 </ul>
 
diff --git a/Examples/javascript/enum/runme.js b/Examples/javascript/enum/runme.js
index 851d43c4b..f3264889c 100644
--- a/Examples/javascript/enum/runme.js
+++ b/Examples/javascript/enum/runme.js
@@ -30,5 +30,5 @@ f.enum_test(example.Foo.LUDICROUS);
 // enum value BLUE of enum color is accessed as property of cconst
 console.log("example.BLUE= " + example.BLUE);
 
-// enum value LUDICROUS of enum Foo::speed is accessed as as property of cconst
+// enum value LUDICROUS of enum Foo::speed is accessed as property of cconst
 console.log("example.speed.LUDICROUS= " + example.Foo.LUDICROUS); 
diff --git a/Examples/test-suite/README b/Examples/test-suite/README
index aac7636c6..3b7cea477 100644
--- a/Examples/test-suite/README
+++ b/Examples/test-suite/README
@@ -47,6 +47,6 @@ testdir/README file.
 Further Documentation
 ---------------------
 
-There is documentation about the test-suite and how to use use it in
+There is documentation about the test-suite and how to use it in
 the SWIG documentation - Doc/Manual/Extending.html#Extending_test_suite.
 
diff --git a/Examples/test-suite/csharp/li_std_map_runme.cs b/Examples/test-suite/csharp/li_std_map_runme.cs
index 0fe1ab5cd..b21c81e4e 100644
--- a/Examples/test-suite/csharp/li_std_map_runme.cs
+++ b/Examples/test-suite/csharp/li_std_map_runme.cs
@@ -18,7 +18,7 @@ public class li_std_map_runme {
 
     public static void Main()
     {
-        // Set up an int int map
+        // Set up an string to int map
         StringIntMap simap = new StringIntMap();
         for (int i = 0; i < collectionSize; i++)
         {
diff --git a/Examples/test-suite/director_extend.i b/Examples/test-suite/director_extend.i
index cec930a42..60a9d4cf0 100644
--- a/Examples/test-suite/director_extend.i
+++ b/Examples/test-suite/director_extend.i
@@ -25,7 +25,7 @@ namespace Swig {
   size_t ExceptionMethod()
   {
 // Check positioning of director code in wrapper file
-// Below is what we really want to test, but director exceptions vary too much across across all languages
+// Below is what we really want to test, but director exceptions vary too much across all languages
 //    throw Swig::DirectorException("DirectorException was not in scope!!");
 // Instead check definition of Director class as that is defined in the same place as DirectorException (director.swg)
     size_t size = sizeof(Swig::Director);
diff --git a/Examples/test-suite/perl5/README b/Examples/test-suite/perl5/README
index 804dec8e8..f15c07849 100644
--- a/Examples/test-suite/perl5/README
+++ b/Examples/test-suite/perl5/README
@@ -6,7 +6,7 @@ Test::More Support
 ==
 
 Test::More is a standard perl test harness tool.
-Support was added for for using Test::More in 1.3.28.
+Support was added for using Test::More in 1.3.28.
 If adding a new test to this suite, please use Test::More.
 
 There are a few legacy test cases which do not use Test::More and these ought to be converted:
diff --git a/Lib/d/dswigtype.swg b/Lib/d/dswigtype.swg
index f91d6dfe6..5043741d5 100644
--- a/Lib/d/dswigtype.swg
+++ b/Lib/d/dswigtype.swg
@@ -162,7 +162,7 @@
   return ret;
 }
 
-// Treat references to arrays like like references to a single element.
+// Treat references to arrays like references to a single element.
 %apply SWIGTYPE & { SWIGTYPE ((&)[ANY]) }
 
 
diff --git a/Lib/lua/luarun.swg b/Lib/lua/luarun.swg
index 3510d04d7..514336029 100644
--- a/Lib/lua/luarun.swg
+++ b/Lib/lua/luarun.swg
@@ -180,7 +180,7 @@ typedef struct swig_elua_entry {
  * -------------------------------------------------------------------------- */
 
 /* Push the string STR on the Lua stack, like lua_pushstring, but
-   prefixed with the the location of the innermost Lua call-point
+   prefixed with the location of the innermost Lua call-point
    (as formated by luaL_where).  */
 SWIGRUNTIME void
 SWIG_Lua_pusherrstring (lua_State *L, const char *str)
@@ -191,7 +191,7 @@ SWIG_Lua_pusherrstring (lua_State *L, const char *str)
 }
 
 /* Push a formatted string generated from FMT and following args on
-   the Lua stack, like lua_pushfstring, but prefixed with the the
+   the Lua stack, like lua_pushfstring, but prefixed with the
    location of the innermost Lua call-point (as formated by luaL_where).  */
 SWIGRUNTIME void
 SWIG_Lua_pushferrstring (lua_State *L, const char *fmt, ...)
diff --git a/Lib/perl5/perlrun.swg b/Lib/perl5/perlrun.swg
index d1865de0a..cc4ba446a 100644
--- a/Lib/perl5/perlrun.swg
+++ b/Lib/perl5/perlrun.swg
@@ -392,7 +392,7 @@ SWIG_Perl_NewPackedObj(SWIG_MAYBE_PERL_OBJECT void *ptr, int sz, swig_type_info
   return result;
 }
 
-/* Convert a packed value value */
+/* Convert a packed pointer value */
 SWIGRUNTIME int
 SWIG_Perl_ConvertPacked(SWIG_MAYBE_PERL_OBJECT SV *obj, void *ptr, int sz, swig_type_info *ty) {
   swig_cast_info *tc;
diff --git a/Lib/python/pyrun.swg b/Lib/python/pyrun.swg
index 939a69204..efc476613 100644
--- a/Lib/python/pyrun.swg
+++ b/Lib/python/pyrun.swg
@@ -538,7 +538,7 @@ SwigPyObject_dealloc(PyObject *v)
       PyObject *res;
 
       /* PyObject_CallFunction() has the potential to silently drop
-         the active active exception.  In cases of unnamed temporary
+         the active exception.  In cases of unnamed temporary
          variable or where we just finished iterating over a generator
          StopIteration will be active right now, and this needs to
          remain true upon return from SwigPyObject_dealloc.  So save
@@ -1308,7 +1308,7 @@ SWIG_Python_ConvertFunctionPtr(PyObject *obj, void **ptr, swig_type_info *ty) {
   }
 }
 
-/* Convert a packed value value */
+/* Convert a packed pointer value */
 
 SWIGRUNTIME int
 SWIG_Python_ConvertPacked(PyObject *obj, void *ptr, size_t sz, swig_type_info *ty) {
diff --git a/Lib/r/rrun.swg b/Lib/r/rrun.swg
index 81f6461d2..63b7ecc70 100644
--- a/Lib/r/rrun.swg
+++ b/Lib/r/rrun.swg
@@ -350,7 +350,7 @@ SWIG_R_NewPackedObj(void *ptr, size_t sz, swig_type_info *type) {
   return ptr ? RSwigPacked_New((void *) ptr, sz, type) : R_NilValue;
 }
 
-/* Convert a packed value value */
+/* Convert a packed pointer value */
 
 SWIGRUNTIME int
 SWIG_R_ConvertPacked(SEXP obj, void *ptr, size_t sz, swig_type_info *ty) {
diff --git a/Lib/r/srun.swg b/Lib/r/srun.swg
index 2045ab94e..d07218a77 100644
--- a/Lib/r/srun.swg
+++ b/Lib/r/srun.swg
@@ -7,7 +7,7 @@
 
 
 # This could be provided as a separate run-time library but this
-# approach allows the code to to be included directly into the
+# approach allows the code to be included directly into the
 # generated bindings and so removes the need to have and install an
 # additional library.  We may however end up with multiple copies of
 # this and some confusion at run-time as to which class to use. This
diff --git a/Lib/ruby/rubyrun.swg b/Lib/ruby/rubyrun.swg
index 4628aedc3..1afc5c1d0 100644
--- a/Lib/ruby/rubyrun.swg
+++ b/Lib/ruby/rubyrun.swg
@@ -363,7 +363,7 @@ SWIG_Ruby_NewPackedObj(void *ptr, int sz, swig_type_info *type) {
   return rb_str_new2(result);
 }
 
-/* Convert a packed value value */
+/* Convert a packed pointer value */
 SWIGRUNTIME int
 SWIG_Ruby_ConvertPacked(VALUE obj, void *ptr, int sz, swig_type_info *ty) {
   swig_cast_info *tc;
diff --git a/Lib/scilab/scitypemaps.swg b/Lib/scilab/scitypemaps.swg
index 4cf0da3f1..682d18c44 100644
--- a/Lib/scilab/scitypemaps.swg
+++ b/Lib/scilab/scitypemaps.swg
@@ -7,7 +7,7 @@
 #define SWIG_Object int
 
 #define %append_output(obj)         if (!SWIG_IsOK(SWIG_Scilab_SetOutput(pvApiCtx, obj))) return SWIG_ERROR
-#define %set_constant(name, obj)    if (!SWIG_IsOK(SWIG_Scilab_SetOutput(pvApiCtx, obj))) return SWIG_ERROR // Name is managed by the the function name
+#define %set_constant(name, obj)    if (!SWIG_IsOK(SWIG_Scilab_SetOutput(pvApiCtx, obj))) return SWIG_ERROR // Name is managed by the function name
 #define %raise(obj, type, desc)     SWIG_Scilab_Raise(obj, type, desc)
 #define %set_output(obj)            if (!SWIG_IsOK(SWIG_Scilab_SetOutput(pvApiCtx, obj))) return SWIG_ERROR
 #define %set_varoutput(obj)         if (!SWIG_IsOK(SWIG_Scilab_SetOutput(pvApiCtx, obj))) return SWIG_ERROR
diff --git a/Lib/tcl/tclrun.swg b/Lib/tcl/tclrun.swg
index f671ba240..408ddac3d 100644
--- a/Lib/tcl/tclrun.swg
+++ b/Lib/tcl/tclrun.swg
@@ -199,7 +199,7 @@ SWIG_Tcl_PointerTypeFromString(char *c) {
   return c;
 }
 
-/* Convert a packed value value */
+/* Convert a packed pointer value */
 SWIGRUNTIME int
 SWIG_Tcl_ConvertPacked(Tcl_Interp *SWIGUNUSEDPARM(interp) , Tcl_Obj *obj, void *ptr, int sz, swig_type_info *ty) {
   swig_cast_info *tc;
diff --git a/Source/Modules/go.cxx b/Source/Modules/go.cxx
index 1512834f9..916030437 100644
--- a/Source/Modules/go.cxx
+++ b/Source/Modules/go.cxx
@@ -990,7 +990,7 @@ private:
    * overname: The overload string for overloaded function.
    * wname: The SWIG wrapped name--the name of the C function.
    * base: A list of the names of base classes, in the case where this
-   *       is is a vritual method not defined in the current class.
+   *       is a virtual method not defined in the current class.
    * parms: The parameters.
    * result: The result type.
    * is_static: Whether this is a static method or member.
diff --git a/Source/Modules/lang.cxx b/Source/Modules/lang.cxx
index 11874ef0a..1e4a6bdb6 100644
--- a/Source/Modules/lang.cxx
+++ b/Source/Modules/lang.cxx
@@ -1949,7 +1949,7 @@ int Language::unrollVirtualMethods(Node *n, Node *parent, List *vm, int default_
      generation of 'empty' director classes.
 
      But this has to be done outside the previous 'for'
-     an the recursive loop!.
+     and the recursive loop!.
    */
   if (n == parent) {
     int len = Len(vm);
@@ -2078,7 +2078,7 @@ int Language::classDirectorConstructors(Node *n) {
      needed, since there is a public constructor already defined.  
 
      (scottm) This code is needed here to make the director_abstract +
-     test generate compilable code (Example2 in director_abastract.i).
+     test generate compilable code (Example2 in director_abstract.i).
 
      (mmatus) This is very strange, since swig compiled with gcc3.2.3
      doesn't need it here....
@@ -3308,7 +3308,7 @@ Node *Language::classLookup(const SwigType *s) const {
     }
     if (n) {
       /* Found a match.  Look at the prefix.  We only allow
-         the cases where where we want a proxy class for the particular type */
+         the cases where we want a proxy class for the particular type */
       bool acceptable_prefix = 
 	(Len(prefix) == 0) ||			      // simple type (pass by value)
 	(Strcmp(prefix, "p.") == 0) ||		      // pointer
diff --git a/Source/Modules/lua.cxx b/Source/Modules/lua.cxx
index 80ea47f3f..08de34976 100644
--- a/Source/Modules/lua.cxx
+++ b/Source/Modules/lua.cxx
@@ -1755,7 +1755,7 @@ public:
    *
    * This is to convert the string of Lua code into a proper string, which can then be
    * emitted into the C/C++ code.
-   * Basically is is a lot of search & replacing of odd sequences
+   * Basically it is a lot of search & replacing of odd sequences
    * ---------------------------------------------------------------------------- */
 
   void escapeCode(String *str) {
@@ -1770,7 +1770,7 @@ public:
   /* -----------------------------------------------------------------------------
    * rawGetCArraysHash(String *name)
    *
-   * A small helper to hide impelementation of how CArrays hashes are stored
+   * A small helper to hide implementation of how CArrays hashes are stored
    * ---------------------------------------------------------------------------- */
 
   Hash *rawGetCArraysHash(const_String_or_char_ptr name) {
diff --git a/Source/Modules/r.cxx b/Source/Modules/r.cxx
index 1c8533064..6a326206f 100644
--- a/Source/Modules/r.cxx
+++ b/Source/Modules/r.cxx
@@ -718,7 +718,7 @@ String * R::createFunctionPointerHandler(SwigType *t, Node *n, int *numArgs) {
      function that handles the scoerceout. 
      We need to check if any of the argument types have an entry in
      that map. If none do, the ignore and call the function straight.
-     Otherwise, generate the a marshalling function.
+     Otherwise, generate a marshalling function.
      Need to be able to find it in S. Or use an entirely generic one
      that evaluates the expressions.
      Handle errors in the evaluation of the function by restoring
diff --git a/Source/Modules/utils.cxx b/Source/Modules/utils.cxx
index a91ebe098..2964ed3a6 100644
--- a/Source/Modules/utils.cxx
+++ b/Source/Modules/utils.cxx
@@ -59,7 +59,7 @@ int is_non_virtual_protected_access(Node *n) {
     // When vtable is empty, the director class does not get emitted, so a check for an empty vtable should be done.
     // However, vtable is set in Language and so is not yet set when methods in Typepass call clean_overloaded()
     // which calls is_non_virtual_protected_access. So commented out below.
-    // Moving the director vtable creation into into Typepass should solve this problem.
+    // Moving the director vtable creation into Typepass should solve this problem.
     if (is_member_director_helper(parentNode, n) /* && Getattr(parentNode, "vtable")*/)
       result = 1;
   }
diff --git a/Source/Swig/cwrap.c b/Source/Swig/cwrap.c
index 9da4e0829..4c3135e3a 100644
--- a/Source/Swig/cwrap.c
+++ b/Source/Swig/cwrap.c
@@ -277,7 +277,7 @@ int Swig_cargs(Wrapper *w, ParmList *p) {
 	  SwigType_del_rvalue_reference(tvalue);
 	  tycode = SwigType_type(tvalue);
 	  if (tycode != T_USER) {
-	    /* plain primitive type, we copy the the def value */
+	    /* plain primitive type, we copy the def value */
 	    String *lstr = SwigType_lstr(tvalue, defname);
 	    defvalue = NewStringf("%s = %s", lstr, qvalue);
 	    Delete(lstr);
diff --git a/Source/Swig/symbol.c b/Source/Swig/symbol.c
index c548a0670..965a84472 100644
--- a/Source/Swig/symbol.c
+++ b/Source/Swig/symbol.c
@@ -599,7 +599,7 @@ void Swig_symbol_cadd(const_String_or_char_ptr name, Node *n) {
     Setattr(ccurrent, name, n);
   }
 
-  /* Multiple entries in the C symbol table.   We append to to the symbol table */
+  /* Multiple entries in the C symbol table.   We append to the symbol table */
   if (append) {
     Node *fn, *pn = 0;
     cn = Getattr(ccurrent, name);
diff --git a/configure.ac b/configure.ac
index 25ea0a243..ddf7a7dd7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -280,7 +280,7 @@ fi
 AC_MSG_RESULT($RPATH)
 
 # LINKFORSHARED are the flags passed to the $(CC) command that links
-# the a few executables -- this is only needed for a few systems
+# a few executables -- this is only needed for a few systems
 
 AC_MSG_CHECKING(LINKFORSHARED)
 if test -z "$LINKFORSHARED"