diff --git a/src/App/MappedName.cpp b/src/App/MappedName.cpp
index 17256b32e4..88d326bfa8 100644
--- a/src/App/MappedName.cpp
+++ b/src/App/MappedName.cpp
@@ -173,7 +173,7 @@ int MappedName::findTagInElementName(long* tagOut, int* lenOut, std::string* pos
                 //                    next            pos
                 //
                 // There maybe other operation codes after this embedded tagOut
-                // postfixOut, search for the seperator.
+                // postfixOut, search for the separator.
                 //
                 int end {0};
                 if (pos == next) {
diff --git a/src/App/PropertyExpressionEngine.cpp b/src/App/PropertyExpressionEngine.cpp
index 4c3dcc8554..2b46934d44 100644
--- a/src/App/PropertyExpressionEngine.cpp
+++ b/src/App/PropertyExpressionEngine.cpp
@@ -751,7 +751,7 @@ void PropertyExpressionEngine::getPathsToDocumentObject(DocumentObject* obj,
 bool PropertyExpressionEngine::depsAreTouched() const
 {
     for(auto &v : _Deps) {
-        // v.second inidcates if it is a hidden reference
+        // v.second indicates if it is a hidden reference
         if(!v.second && v.first->isTouched())
             return true;
     }
diff --git a/src/App/PropertyGeo.h b/src/App/PropertyGeo.h
index d32cd3507c..829e251f98 100644
--- a/src/App/PropertyGeo.h
+++ b/src/App/PropertyGeo.h
@@ -248,7 +248,7 @@ class AppExport PropertyMatrix: public Property
 public:
     /**
      * A constructor.
-     * Intitialises to an identity matrix
+     * Initialises to an identity matrix
      */
     PropertyMatrix();
 
diff --git a/src/Mod/Draft/draftmake/make_circle.py b/src/Mod/Draft/draftmake/make_circle.py
index 49532e2fad..0f912be8ae 100644
--- a/src/Mod/Draft/draftmake/make_circle.py
+++ b/src/Mod/Draft/draftmake/make_circle.py
@@ -48,7 +48,7 @@ def make_circle(radius, placement=None, face=None, startangle=None, endangle=Non
     Creates a circle object with given parameters.
 
     If startangle and endangle are provided and not equal, the object will show
-    an arc instead of a full cirle.
+    an arc instead of a full circle.
 
     Parameters
     ----------
diff --git a/src/Mod/Sketcher/App/PropertyConstraintList.h b/src/Mod/Sketcher/App/PropertyConstraintList.h
index e08bb85b27..ae8c329aa8 100644
--- a/src/Mod/Sketcher/App/PropertyConstraintList.h
+++ b/src/Mod/Sketcher/App/PropertyConstraintList.h
@@ -71,19 +71,19 @@ public:
 
     /*!
       Sets a single constraint to the property at a certain
-      position. The value is cloned inernally so it's in the
+      position. The value is cloned internally so it's in the
       responsibility of the caller to free the memory.
     */
     void set1Value(const int idx, const Constraint*);
     /*!
       Sets a single constraint to the property.
-      The value is cloned inernally so it's in the
+      The value is cloned internally so it's in the
       responsibility of the caller to free the memory.
     */
     void setValue(const Constraint*);
     /*!
       Sets a vector of constraint to the property.
-      The values of the array are cloned inernally so it's
+      The values of the array are cloned internally so it's
       in the responsibility of the caller to free the memory.
     */
     void setValues(const std::vector<Constraint*>&);