diff --git a/source/blender/blenkernel/intern/CCGSubSurf_util.c b/source/blender/blenkernel/intern/CCGSubSurf_util.c
index 9af69115559..c7ef528c02f 100644
--- a/source/blender/blenkernel/intern/CCGSubSurf_util.c
+++ b/source/blender/blenkernel/intern/CCGSubSurf_util.c
@@ -184,7 +184,7 @@ int ccg_ehashIterator_isStopped(EHashIterator *ehi)
 }
 
 /**
- * Standard allocator implementarion.
+ * Standard allocator implementation.
  */
 
 static void *_stdAllocator_alloc(CCGAllocatorHDL UNUSED(a), int numBytes)
diff --git a/source/blender/blenkernel/intern/armature_update.c b/source/blender/blenkernel/intern/armature_update.c
index ece17335fa0..aebd564ca58 100644
--- a/source/blender/blenkernel/intern/armature_update.c
+++ b/source/blender/blenkernel/intern/armature_update.c
@@ -224,7 +224,7 @@ static void splineik_init_tree_from_pchan(Scene *scene, Object *UNUSED(ob), bPos
 	}
 
 	/* make a new Spline-IK chain, and store it in the IK chains */
-	/* TODO: we should check if there is already an IK chain on this, since that would take presidence... */
+	/* TODO: we should check if there is already an IK chain on this, since that would take precedence... */
 	{
 		/* make new tree */
 		tSplineIK_Tree *tree = MEM_callocN(sizeof(tSplineIK_Tree), "SplineIK Tree");
diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c
index 88f1c4d5e4a..ba783e08b39 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -2268,7 +2268,7 @@ static void write_meshes(WriteData *wd, ListBase *idbase)
 				mesh->edit_btmesh = NULL;
 
 				/* now fill in polys to mfaces */
-				/* XXX This breaks writing desing, by using temp allocated memory, which will likely generate
+				/* XXX This breaks writing design, by using temp allocated memory, which will likely generate
 				 *     duplicates in stored 'old' addresses.
 				 *     This is very bad, but do not see easy way to avoid this, aside from generating those data
 				 *     outside of save process itself.
diff --git a/source/blender/bmesh/operators/bmo_normals.c b/source/blender/bmesh/operators/bmo_normals.c
index f0738303d5c..73dbee25be3 100644
--- a/source/blender/bmesh/operators/bmo_normals.c
+++ b/source/blender/bmesh/operators/bmo_normals.c
@@ -86,7 +86,7 @@ static int recalc_face_normals_find_index(BMesh *bm, BMFace **faces, const int f
 	int f_start_index;
 	int i;
 
-	/* Search for the best loop. Members are comapred in-order defined here. */
+	/* Search for the best loop. Members are compared in-order defined here. */
 	struct {
 		/* Squared distance from the center to the loops vertex 'l->v'.
 		 * The normalized direction between the center and this vertex is also used for the dot-products below. */
diff --git a/source/blender/collada/ErrorHandler.cpp b/source/blender/collada/ErrorHandler.cpp
index b271604f839..98aa85f8a9b 100644
--- a/source/blender/collada/ErrorHandler.cpp
+++ b/source/blender/collada/ErrorHandler.cpp
@@ -79,7 +79,7 @@ bool ErrorHandler::handleError(const COLLADASaxFWL::IError *error)
 		COLLADASaxFWL::SaxFWLError *saxFWLError = (COLLADASaxFWL::SaxFWLError *) error;
 		/*
 		 * Accept non critical errors as warnings (i.e. texture not found)
-		 * This makes the importer more gracefull, so it now imports what makes sense.
+		 * This makes the importer more graceful, so it now imports what makes sense.
 		 */
 		if (saxFWLError->getSeverity() == COLLADASaxFWL::IError::SEVERITY_ERROR_NONCRITICAL) {
 			isError = false;
diff --git a/source/blender/editors/include/ED_keyframing.h b/source/blender/editors/include/ED_keyframing.h
index 81e2558e765..602e203a381 100644
--- a/source/blender/editors/include/ED_keyframing.h
+++ b/source/blender/editors/include/ED_keyframing.h
@@ -325,18 +325,18 @@ bool ANIM_driver_vars_paste(struct ReportList *reports, struct FCurve *fcu, bool
 /* Notes:
  * - All the defines for this (User-Pref settings and Per-Scene settings)
  *  are defined in DNA_userdef_types.h
- * - Scene settings take presidence over those for userprefs, with old files
+ * - Scene settings take precedence over those for userprefs, with old files
  *  inheriting userpref settings for the scene settings
  * - "On/Off + Mode" are stored per Scene, but "settings" are currently stored
  *  as userprefs
  */
 
 /* Auto-Keying macros for use by various tools */
-/* check if auto-keyframing is enabled (per scene takes presidence) */
+/* check if auto-keyframing is enabled (per scene takes precedence) */
 #define IS_AUTOKEY_ON(scene)  ((scene) ? (scene->toolsettings->autokey_mode & AUTOKEY_ON) : (U.autokey_mode & AUTOKEY_ON))
-/* check the mode for auto-keyframing (per scene takes presidence)  */
+/* check the mode for auto-keyframing (per scene takes precedence)  */
 #define IS_AUTOKEY_MODE(scene, mode)  ((scene) ? (scene->toolsettings->autokey_mode == AUTOKEY_MODE_##mode) : (U.autokey_mode == AUTOKEY_MODE_##mode))
-/* check if a flag is set for auto-keyframing (per scene takes presidence) */
+/* check if a flag is set for auto-keyframing (per scene takes precedence) */
 #define IS_AUTOKEY_FLAG(scene, flag) \
 	((scene) ? \
 		((scene->toolsettings->autokey_flag & AUTOKEY_FLAG_##flag) || (U.autokey_flag & AUTOKEY_FLAG_##flag)) \
diff --git a/source/blender/editors/interface/interface_regions.c b/source/blender/editors/interface/interface_regions.c
index 575b32e81e8..d4205c50ddc 100644
--- a/source/blender/editors/interface/interface_regions.c
+++ b/source/blender/editors/interface/interface_regions.c
@@ -110,7 +110,7 @@ bool ui_but_menu_step_poll(const uiBut *but)
 {
 	BLI_assert(but->type == UI_BTYPE_MENU);
 
-	/* currenly only RNA buttons */
+	/* currently only RNA buttons */
 	return ((but->menu_step_func != NULL) ||
 	        (but->rnaprop && RNA_property_type(but->rnaprop) == PROP_ENUM));
 }
diff --git a/source/blender/editors/mesh/editmesh_intersect.c b/source/blender/editors/mesh/editmesh_intersect.c
index 69588928253..281a8b2a02d 100644
--- a/source/blender/editors/mesh/editmesh_intersect.c
+++ b/source/blender/editors/mesh/editmesh_intersect.c
@@ -563,7 +563,7 @@ static BMEdge *bm_face_split_edge_find(
 				if (UNLIKELY(BM_edge_exists(v_pivot, l_iter->e->v1) ||
 				             BM_edge_exists(v_pivot, l_iter->e->v2)))
 				{
-					/* very unlikley but will cause complications splicing the verts together,
+					/* very unlikely but will cause complications splicing the verts together,
 					 * so just skip this case */
 					ok = false;
 				}
diff --git a/source/blender/editors/mesh/editmesh_rip.c b/source/blender/editors/mesh/editmesh_rip.c
index e3e5863dc0e..2cdb00286aa 100644
--- a/source/blender/editors/mesh/editmesh_rip.c
+++ b/source/blender/editors/mesh/editmesh_rip.c
@@ -395,7 +395,7 @@ static void edbm_ripsel_deselect_helper(BMesh *bm, EdgeLoopPair *eloop_pairs,
  * return an un-ordered array of loop pairs
  * use for rebuilding face-fill
  *
- * \note the method currenly used fails for edges with 3+ face users and gives
+ * \note the method currently used fails for edges with 3+ face users and gives
  *       nasty holes in the mesh, there isnt a good way of knowing ahead of time
  *       which loops will be split apart (its possible to figure out but quite involved).
  *       So for now this is a known limitation of current rip-fill option.
diff --git a/source/blender/editors/object/object_group.c b/source/blender/editors/object/object_group.c
index bcdd170c53c..0fe43c44d7d 100644
--- a/source/blender/editors/object/object_group.c
+++ b/source/blender/editors/object/object_group.c
@@ -440,7 +440,7 @@ static int group_link_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 
 	/* Early return check, if the object is already in group
-	 * we could sckip all the dependency check and just consider
+	 * we could skip all the dependency check and just consider
 	 * operator is finished.
 	 */
 	if (BKE_group_object_exists(group, ob)) {
diff --git a/source/blender/editors/render/render_internal.c b/source/blender/editors/render/render_internal.c
index 1203889cf0e..8c5d25ad44d 100644
--- a/source/blender/editors/render/render_internal.c
+++ b/source/blender/editors/render/render_internal.c
@@ -1482,7 +1482,7 @@ static void render_view3d_do(RenderEngine *engine, const bContext *C)
 void render_view3d_update(RenderEngine *engine, const bContext *C)
 {	
 	/* this shouldn't be needed and causes too many database rebuilds, but we
-	 * aren't actually tracking updates for all relevent datablocks so this is
+	 * aren't actually tracking updates for all relevant datablocks so this is
 	 * a catch-all for updates */
 	engine->update_flag |= RE_ENGINE_UPDATE_DATABASE;
 
diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c b/source/blender/editors/sculpt_paint/paint_image_proj.c
index 6ed969cb270..d60c8e8dbd9 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -183,8 +183,8 @@ BLI_INLINE unsigned char f_to_char(const float val)
 /* to avoid locking in tile initialization */
 #define TILE_PENDING SET_INT_IN_POINTER(-1)
 
-/* This is mainly a convenience struct used so we can keep an array of images we use
- * Thir imbufs, etc, in 1 array, When using threads this array is copied for each thread
+/* This is mainly a convenience struct used so we can keep an array of images we use -
+ * their imbufs, etc, in 1 array, When using threads this array is copied for each thread
  * because 'partRedrawRect' and 'touch' values would not be thread safe */
 typedef struct ProjPaintImage {
 	Image *ima;
@@ -202,7 +202,7 @@ typedef struct ProjPaintImage {
  */
 typedef struct ProjStrokeHandle {
 	/* Support for painting from multiple views at once,
-	 * currently used to impliment symmetry painting,
+	 * currently used to implement symmetry painting,
 	 * we can assume at least the first is set while painting. */
 	struct ProjPaintState *ps_views[8];
 	int ps_views_tot;
@@ -2174,7 +2174,7 @@ static void project_bucket_clip_face(
 		
 		if ((*tot) < 3) {
 			/* no intersections to speak of, but more probable is that all face is just outside the
-			 * rectangle and culled due to float precision issues. Since above teste have failed,
+			 * rectangle and culled due to float precision issues. Since above tests have failed,
 			 * just dump triangle as is for painting */
 			*tot = 0;
 			copy_v2_v2(bucket_bounds_uv[*tot], uv1co); (*tot)++;
diff --git a/source/blender/editors/space_clip/clip_editor.c b/source/blender/editors/space_clip/clip_editor.c
index 1ff656243d6..14d0f909d23 100644
--- a/source/blender/editors/space_clip/clip_editor.c
+++ b/source/blender/editors/space_clip/clip_editor.c
@@ -634,7 +634,7 @@ typedef struct PrefetchQueue {
 	short render_size, render_flag;
 
 	/* If true prefecthing goes forward in time,
-	 * othwewise it goes backwards in time (starting from current frame).
+	 * otherwise it goes backwards in time (starting from current frame).
 	 */
 	bool forward;
 
diff --git a/source/blender/editors/space_graph/graph_draw.c b/source/blender/editors/space_graph/graph_draw.c
index b837e516422..ae91a466495 100644
--- a/source/blender/editors/space_graph/graph_draw.c
+++ b/source/blender/editors/space_graph/graph_draw.c
@@ -826,7 +826,7 @@ static void graph_draw_driver_debug(bAnimContext *ac, ID *id, FCurve *fcu)
 	//if ((driver->flag & DRIVER_FLAG_SHOWDEBUG) == 0)
 	//	return;
 	
-	/* No curve to modify/visualise the result? 
+	/* No curve to modify/visualize the result?
 	 * => We still want to show the 1-1 default... 
 	 */
 	if ((fcu->totvert == 0) && BLI_listbase_is_empty(&fcu->modifiers)) {
diff --git a/source/blender/makesdna/DNA_cloth_types.h b/source/blender/makesdna/DNA_cloth_types.h
index 07bc2478837..d385e303a7c 100644
--- a/source/blender/makesdna/DNA_cloth_types.h
+++ b/source/blender/makesdna/DNA_cloth_types.h
@@ -42,7 +42,7 @@
  *
  * I've tried to keep similar, if not exact names for the variables as
  * are presented in the paper.  Where I've changed the concept slightly,
- * as in stepsPerFrame comapred to the time step in the paper, I've used
+ * as in stepsPerFrame compared to the time step in the paper, I've used
  * variables with different names to minimize confusion.
  */
 
diff --git a/source/blender/python/generic/py_capi_utils.c b/source/blender/python/generic/py_capi_utils.c
index 8b741eba18a..72dec55e50b 100644
--- a/source/blender/python/generic/py_capi_utils.c
+++ b/source/blender/python/generic/py_capi_utils.c
@@ -177,7 +177,7 @@ PyObject *PyC_FromArray(const void *array, int length, const PyTypeObject *type,
 
 /**
  * Caller needs to ensure tuple is uninitialized.
- * Handy for filling a typle with None for eg.
+ * Handy for filling a tuple with None for eg.
  */
 void PyC_Tuple_Fill(PyObject *tuple, PyObject *value)
 {
@@ -367,11 +367,12 @@ PyObject *PyC_FrozenSetFromStrings(const char **strings)
 }
 
 
-/* similar to PyErr_Format(),
+/**
+ * Similar to #PyErr_Format(),
  *
- * implementation - we cant actually preprend the existing exception,
+ * Implementation - we cant actually prepend the existing exception,
  * because it could have _any_ arguments given to it, so instead we get its
- * __str__ output and raise our own exception including it.
+ * ``__str__`` output and raise our own exception including it.
  */
 PyObject *PyC_Err_Format_Prefix(PyObject *exception_type_prefix, const char *format, ...)
 {