diff --git a/src/Doc/BuildDocDoxyFull.cfg b/src/Doc/BuildDocDoxyFull.cfg
index 99eff7ccc6..6b5323f8b9 100644
--- a/src/Doc/BuildDocDoxyFull.cfg
+++ b/src/Doc/BuildDocDoxyFull.cfg
@@ -593,7 +593,7 @@ REFERENCES_RELATION    = YES
 # If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
 # and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
 # functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
-# link to the source code.  Otherwise they will link to the documentstion.
+# link to the source code.  Otherwise they will link to the documentation.
 
 REFERENCES_LINK_SOURCE = YES
 
diff --git a/src/Gui/Action.cpp b/src/Gui/Action.cpp
index 279447a86b..55961557ea 100644
--- a/src/Gui/Action.cpp
+++ b/src/Gui/Action.cpp
@@ -325,7 +325,7 @@ QString Action::createToolTip(QString helpText,
     //
     // The long winding code is to deal with the fact that Qt will auto wrap
     // a rich text tooltip but the width is too short. We can escape the auto
-    // wrappin using <p style='white-space:pre'>.
+    // wrapping using <p style='white-space:pre'>.
 
     QString shortcut = shortCut;
     if (!shortcut.isEmpty() && helpText.endsWith(shortcut)) {
diff --git a/src/Gui/CommandFeat.cpp b/src/Gui/CommandFeat.cpp
index f41237ca79..931b3b188a 100644
--- a/src/Gui/CommandFeat.cpp
+++ b/src/Gui/CommandFeat.cpp
@@ -147,7 +147,7 @@ StdCmdToggleFreeze::StdCmdToggleFreeze()
     sGroup = "File";
     sMenuText = QT_TR_NOOP("Toggle freeze");
     static std::string toolTip = std::string("<p>")
-        + QT_TR_NOOP("Toggles freeze sate of the selected objects. A freezed object is not recomputed when its parents change.")
+        + QT_TR_NOOP("Toggles freeze state of the selected objects. A freezed object is not recomputed when its parents change.")
         + "</p>";
     sToolTipText = toolTip.c_str();
     sStatusTip = sToolTipText;
diff --git a/src/Gui/DlgPreferencesImp.cpp b/src/Gui/DlgPreferencesImp.cpp
index b6db2e073a..cf6be8493d 100644
--- a/src/Gui/DlgPreferencesImp.cpp
+++ b/src/Gui/DlgPreferencesImp.cpp
@@ -927,7 +927,7 @@ void DlgPreferencesImp::restorePageDefaults(PreferencesPageItem* item)
         page->resetSettingsToDefaults();
         /**
          * Let's save the restart request before the page object is deleted and replaced with
-         * the newPage object (wich has restartRequired initialized to false)
+         * the newPage object (which has restartRequired initialized to false)
          */
         restartRequired = restartRequired || page->isRestartRequired();
         
diff --git a/src/Gui/SoFCUnifiedSelection.cpp b/src/Gui/SoFCUnifiedSelection.cpp
index c853ce333b..215316b108 100644
--- a/src/Gui/SoFCUnifiedSelection.cpp
+++ b/src/Gui/SoFCUnifiedSelection.cpp
@@ -1712,7 +1712,7 @@ void SoFCPathAnnotation::GLRenderBelowPath(SoGLRenderAction * action)
 
     if(path->getLength() != tmpPath->getLength()) {
         // The auditing SoPath may be truncated due to harmless things such as
-        // fliping a SoSwitch sibling node. So we keep an unauditing SoTempPath
+        // flipping a SoSwitch sibling node. So we keep an unauditing SoTempPath
         // around to try to restore the path.
         for(int i=path->getLength()-1;i<tmpPath->getLength()-1;++i) {
             auto children = path->getNode(i)->getChildren();
diff --git a/src/Gui/Tree.cpp b/src/Gui/Tree.cpp
index 5ef4331f5c..e4b5ba6b34 100644
--- a/src/Gui/Tree.cpp
+++ b/src/Gui/Tree.cpp
@@ -1564,7 +1564,7 @@ void TreeWidget::mousePressEvent(QMouseEvent* event)
 {
     QTreeWidget::mousePressEvent(event);
 
-    // Handle the visibility icon after the normal event processing to not interfer with
+    // Handle the visibility icon after the normal event processing to not interfere with
     // the selection logic.
     if (isVisibilityIconEnabled()) {
         QTreeWidgetItem* item = itemAt(event->pos());
diff --git a/src/Mod/Arch/ArchBuildingPart.py b/src/Mod/Arch/ArchBuildingPart.py
index db7358e59c..91da2f5b79 100644
--- a/src/Mod/Arch/ArchBuildingPart.py
+++ b/src/Mod/Arch/ArchBuildingPart.py
@@ -883,7 +883,7 @@ class ViewProviderBuildingPart:
         return True
 
     def setEdit(self, vobj, mode):
-        # mode == 1 if Transform is selected in the Tree view contex menu.
+        # mode == 1 if Transform is selected in the Tree view context menu.
         # mode == 2 has been added for consistency.
         if mode == 1 or mode == 2:
             return None
diff --git a/src/Mod/Arch/ArchWall.py b/src/Mod/Arch/ArchWall.py
index 02490d41e1..89d8e953c6 100644
--- a/src/Mod/Arch/ArchWall.py
+++ b/src/Mod/Arch/ArchWall.py
@@ -1270,7 +1270,8 @@ class _Wall(ArchComponent.Component):
 
                     # If the object is a single edge, use that as the
                     # basewires.
-                    # TODO 2023.11.26: Need to check if it is not Sketch afterall first or use algoritm for Sketch altogher?
+                    # TODO 2023.11.26: Need to check if it isn't Sketch after all first
+                    # or use algorithm for Sketch altogether?
                     elif len(obj.Base.Shape.Edges) == 1:
                         self.basewires = [Part.Wire(obj.Base.Shape.Edges)]
 
diff --git a/src/Mod/Assembly/App/AssemblyObject.cpp b/src/Mod/Assembly/App/AssemblyObject.cpp
index b5a060560c..dead9a8c65 100644
--- a/src/Mod/Assembly/App/AssemblyObject.cpp
+++ b/src/Mod/Assembly/App/AssemblyObject.cpp
@@ -1190,7 +1190,7 @@ std::vector<App::DocumentObject*> AssemblyObject::getDownstreamParts(App::Docume
     }
 
     AssemblyObject::setJointActivated(joint, state);
-    /*if (limit > 1000) {  // Inifinite loop protection
+    /*if (limit > 1000) {  // Infinite loop protection
         return {};
     }
     limit++;
@@ -1243,7 +1243,7 @@ std::vector<App::DocumentObject*> AssemblyObject::getDownstreamParts(App::Docume
 std::vector<App::DocumentObject*> AssemblyObject::getUpstreamParts(App::DocumentObject* part,
                                                                    int limit)
 {
-    if (limit > 1000) {  // Inifinite loop protection
+    if (limit > 1000) {  // Infinite loop protection
         return {};
     }
     limit++;
diff --git a/src/Mod/CAM/App/AreaParams.h b/src/Mod/CAM/App/AreaParams.h
index 55a96ec762..6740e6efb5 100644
--- a/src/Mod/CAM/App/AreaParams.h
+++ b/src/Mod/CAM/App/AreaParams.h
@@ -68,7 +68,7 @@
         "behave like wire cutting. Without exploding, 'Difference' in ClipperLib\n"\
         "behave like face cutting."))\
     ((enum,open_mode,OpenMode,0,\
-        "Specify how to handle open wires. 'None' means combin without openeration.\n"\
+        "Specify how to handle open wires. 'None' means combine without openeration.\n"\
         "'Edges' means separate to edges before Union. ClipperLib seems to have an.\n"\
         "urge to close open wires.",(None)(Union)(Edges)))\
     AREA_PARAMS_DEFLECTION \
diff --git a/src/Mod/Fem/femobjects/constraint_tie.py b/src/Mod/Fem/femobjects/constraint_tie.py
index d6a5878c6d..9301d9fddf 100644
--- a/src/Mod/Fem/femobjects/constraint_tie.py
+++ b/src/Mod/Fem/femobjects/constraint_tie.py
@@ -105,7 +105,7 @@ class ConstraintTie(base_fempythonobject.BaseFemPythonObject):
 
 
     def onDocumentRestored(self, obj):
-        # update old proyect with new properties
+        # update old project with new properties
         for prop in self._get_properties():
             try:
                 obj.getPropertyByName(prop.name)
diff --git a/src/Mod/Part/App/PartFeature.cpp b/src/Mod/Part/App/PartFeature.cpp
index 2fe5d8c637..5c0fca6fb1 100644
--- a/src/Mod/Part/App/PartFeature.cpp
+++ b/src/Mod/Part/App/PartFeature.cpp
@@ -565,7 +565,7 @@ QVector<Data::MappedElement> Feature::getRelatedElements(App::DocumentObject* ob
         for (auto rit = src.rbegin(); idx >= 0 && rit != src.rend(); ++rit, --idx) {
             // TODO: shall we ignore source tag when comparing? It could cause
             // matching unrelated element, but it does help dealing with feature
-            // reording in PartDesign::Body.
+            // recording in PartDesign::Body.
             if (rit->second != source[idx].second) {
                 ++idx;
                 break;
diff --git a/src/Mod/Part/App/TopoShapeExpansion.cpp b/src/Mod/Part/App/TopoShapeExpansion.cpp
index b30c1604a9..225c114fa2 100644
--- a/src/Mod/Part/App/TopoShapeExpansion.cpp
+++ b/src/Mod/Part/App/TopoShapeExpansion.cpp
@@ -4185,7 +4185,7 @@ TopoShape& TopoShape::makeElementPrism(const TopoShape& base, const gp_Vec& vec,
 //                // DO NOT include uptoface for element mapping. Because OCCT
 //                // BRepFeat_MakePrism will report all top extruded face being
 //                // modified by the uptoface. If there are more than one face in
-//                // the profile, this will cause uncessary duplicated element
+//                // the profile, this will cause unnecessary duplicated element
 //                // mapped name. And will also disrupte element history tracing
 //                // back to the profile sketch.
 //                //
diff --git a/src/Mod/Sketcher/App/planegcs/Geo.h b/src/Mod/Sketcher/App/planegcs/Geo.h
index c19a5d7ebd..b021ef2e84 100644
--- a/src/Mod/Sketcher/App/planegcs/Geo.h
+++ b/src/Mod/Sketcher/App/planegcs/Geo.h
@@ -433,7 +433,7 @@ public:
     DeriVector2 CalculateNormal(const double* param,
                                 const double* derivparam = nullptr) const override;
     DeriVector2 Value(double u, double du, const double* derivparam = nullptr) const override;
-    // Returns value in homogenous coordinates (x*w, y*w, w) at given parameter u
+    // Returns value in homogeneous coordinates (x*w, y*w, w) at given parameter u
     void valueHomogenous(const double u,
                          double* xw,
                          double* yw,
diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index d43e3f9f7b..95ae557362 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -1961,7 +1961,7 @@ void ViewProviderSketch::moveAngleConstraint(Sketcher::Constraint* constr, int c
             if (reverse) {
                 obj->reverseAngleConstraintToSupplementary(constr, constNum);
 
-                ap3 = intersection + dir1 - dir2; //- dir2 instead fo std::swap(dir1, dir2) and dir1 = -dir1
+                ap3 = intersection + dir1 - dir2; //- dir2 instead of std::swap(dir1, dir2) and dir1 = -dir1
                 sign1 = isLeftOfLine(p11, p12, ap3);
                 sign2 = isLeftOfLine(p21, p22, ap3);
             }
diff --git a/tests/src/Mod/Part/App/PartFeature.cpp b/tests/src/Mod/Part/App/PartFeature.cpp
index 3d4cd037bd..8b234e5bbf 100644
--- a/tests/src/Mod/Part/App/PartFeature.cpp
+++ b/tests/src/Mod/Part/App/PartFeature.cpp
@@ -110,7 +110,7 @@ TEST_F(FeaturePartTest, create)
     // the same document, the other feature will get an unique name that will still contain "Shape"
     EXPECT_STREQ(_doc->getObjectName(featureNoName), "Shape001");
 
-    // There aren't other features with name "Vertex" in _doc, therefor that name will be assigned
+    // There aren't other features with name "Vertex" in _doc, therefore that name will be assigned
     // without modifications
     EXPECT_STREQ(_doc->getObjectName(featureNoDoc), "Vertex");
 
@@ -120,12 +120,12 @@ TEST_F(FeaturePartTest, create)
 
     // Check that the features have been created in the correct document
 
-    // The first 3 calls to Feature::create acts on _doc, which is empty, and therefor the number of
-    // features in that document is the same of the features created with Feature::create
+    // The first 3 calls to Feature::create acts on _doc, which is empty, and therefore the number
+    // of features in that document is the same of the features created with Feature::create
     EXPECT_EQ(_doc->getObjects().size(), 3);
 
-    // The last call to Feature::create acts on otherDoc, which is empty, and therefor that document
-    // will have only 1 feature
+    // The last call to Feature::create acts on otherDoc, which is empty, and therefore that
+    // document will have only 1 feature
     EXPECT_EQ(otherDoc->getObjects().size(), 1);
 }
 
diff --git a/tests/src/Mod/Part/App/TopoShapeExpansion.cpp b/tests/src/Mod/Part/App/TopoShapeExpansion.cpp
index 8113dc2989..c33902795f 100644
--- a/tests/src/Mod/Part/App/TopoShapeExpansion.cpp
+++ b/tests/src/Mod/Part/App/TopoShapeExpansion.cpp
@@ -249,7 +249,8 @@ TEST_F(TopoShapeExpansionTest, MapperMakerModified)
 
     // Check the result of the operations
     EXPECT_EQ(transformMprMkr.modified(wire).size(), 1);  // The Transformation acts on the Wire...
-    EXPECT_EQ(transformMprMkr.modified(face).size(), 1);  // ... and therefor on the created Face...
+    EXPECT_EQ(transformMprMkr.modified(face).size(),
+              1);  // ... and therefore on the created Face...
     EXPECT_EQ(transformMprMkr.modified(edge).size(), 1);  // ... and on the Edge added to the Face
 
     EXPECT_EQ(splitMprMkr.modified(edge).size(), 0);  // The Split doesn't modify the Edge