diff --git a/src/Mod/Assembly/App/AppAssembly.cpp b/src/Mod/Assembly/App/AppAssembly.cpp
index 27a1b7f13a..5a8bd4a9d4 100644
--- a/src/Mod/Assembly/App/AppAssembly.cpp
+++ b/src/Mod/Assembly/App/AppAssembly.cpp
@@ -77,12 +77,12 @@ void AssemblyExport initAssembly()
     // call PyType_Ready, otherwise we run into a segmentation fault, later on.
     // This function is responsible for adding inherited slots from a type's base class.
  
-    // Item hirachy
+    // Item hierarchy
     Assembly::Item          ::init();
     Assembly::Product       ::init();
     Assembly::ProductRef    ::init();
 
-    // constraint hirachy
+    // constraint hierarchy
     Assembly::Constraint        ::init();
     Assembly::ConstraintGroup   ::init();
 }
diff --git a/src/Mod/PartDesign/Gui/ViewProviderDatum.h b/src/Mod/PartDesign/Gui/ViewProviderDatum.h
index 43a5057360..e801d9418e 100644
--- a/src/Mod/PartDesign/Gui/ViewProviderDatum.h
+++ b/src/Mod/PartDesign/Gui/ViewProviderDatum.h
@@ -94,7 +94,7 @@ public:
      * Computes appropriate bounding box for the given list of objects to be passed to setExtents ()
      * @param bboxAction  a coin action for traverse the given objects views.
      * @param objs        the list of objects to traverse, due to we traverse the scene graph, the geo children
-     *                    will likely be traveresed too.
+     *                    will likely be traversed too.
      */
     static SbBox3f getRelevantBoundBox (
             SoGetBoundingBoxAction &bboxAction,
diff --git a/src/Mod/Path/App/ParamsHelper.h b/src/Mod/Path/App/ParamsHelper.h
index 234cdfcecb..025cf677ef 100644
--- a/src/Mod/Path/App/ParamsHelper.h
+++ b/src/Mod/Path/App/ParamsHelper.h
@@ -119,7 +119,7 @@
  *
  * - \c default is the default value of this parameter. Right now, you must
  *   supply a default value. Boost.PP has trouble dealing with empty values.
- *   Remember that a sequence cannot be empty. Neight can tuple. Only array,
+ *   Remember that a sequence cannot be empty. Neither can tuple. Only array,
  *   something like <tt>(0,())</tt> for an empty array. It is awkward to write,
  *   and didn't add much functionality I want, hence the restriction of
  *   non-empty defaults here.
diff --git a/src/Mod/Spreadsheet/App/PropertySheet.cpp b/src/Mod/Spreadsheet/App/PropertySheet.cpp
index 28012a70f5..a9a7afdd2d 100644
--- a/src/Mod/Spreadsheet/App/PropertySheet.cpp
+++ b/src/Mod/Spreadsheet/App/PropertySheet.cpp
@@ -1067,7 +1067,7 @@ void PropertySheet::removeDependencies(CellAddress key)
 void PropertySheet::recomputeDependants(const App::DocumentObject *owner, const char *propName)
 {
     // First, search without actual property name for sub-object/link
-    // references, i.e indirect references. The depenedecies of these
+    // references, i.e indirect references. The dependencies of these
     // references are too complex to track exactly, so we only track the
     // top parent object instead, and mark the involved expression
     // whenever the top parent changes.
diff --git a/src/Mod/TechDraw/Gui/TaskWeldingSymbol.cpp b/src/Mod/TechDraw/Gui/TaskWeldingSymbol.cpp
index 215e2706bb..bfcc9223d2 100644
--- a/src/Mod/TechDraw/Gui/TaskWeldingSymbol.cpp
+++ b/src/Mod/TechDraw/Gui/TaskWeldingSymbol.cpp
@@ -376,7 +376,7 @@ void TaskWeldingSymbol::onFlipSidesClicked()
     ui->leOtherTextR->setText(ui->leArrowTextR->text());
     ui->leArrowTextR->setText(tempText);
 
-    // one cannot get the path from the icon therfore read out
+    // one cannot get the path from the icon therefore read out
     // the path property
     auto tempPathArrow = m_arrowFeat->SymbolFile.getValue();
     auto tempPathOther = m_otherFeat->SymbolFile.getValue();