diff --git a/src/newgrf_callbacks.h b/src/newgrf_callbacks.h
index 2290bd6421..546ba630d2 100644
--- a/src/newgrf_callbacks.h
+++ b/src/newgrf_callbacks.h
@@ -311,7 +311,7 @@ enum HouseCallbackMask {
 	CBM_HOUSE_ANIMATION_NEXT_FRAME      =  1, ///< decides next animation frame
 	CBM_HOUSE_ANIMATION_START_STOP      =  2, ///< periodically start/stop the animation
 	CBM_HOUSE_CONSTRUCTION_STATE_CHANGE =  3, ///< change animation when construction state changes
-	CBM_HOUSE_COLOUR                    =  4, ///< decide the color of the building
+	CBM_HOUSE_COLOUR                    =  4, ///< decide the colour of the building
 	CBM_HOUSE_CARGO_ACCEPTANCE          =  5, ///< decides amount of cargo acceptance
 	CBM_HOUSE_ANIMATION_SPEED           =  6, ///< decides animation speed
 	CBM_HOUSE_DESTRUCTION               =  7, ///< trigger destruction of building
@@ -377,7 +377,7 @@ enum ObjectCallbackMask {
 	CBM_OBJ_SLOPE_CHECK               =  0, ///< decides slope suitability
 	CBM_OBJ_ANIMATION_NEXT_FRAME      =  1, ///< decides next animation frame
 	CBM_OBJ_ANIMATION_SPEED           =  2, ///< decides animation speed
-	CBM_OBJ_COLOUR                    =  3, ///< decide the color of the building
+	CBM_OBJ_COLOUR                    =  3, ///< decide the colour of the building
 	CBM_OBJ_FUND_MORE_TEXT            =  4, ///< additional text in fund window
 	CBM_OBJ_AUTOSLOPE                 =  5, ///< decides allowance of autosloping
 };
diff --git a/src/spriteloader/png.cpp b/src/spriteloader/png.cpp
index abc9592e0f..43301616b0 100644
--- a/src/spriteloader/png.cpp
+++ b/src/spriteloader/png.cpp
@@ -191,8 +191,8 @@ static bool LoadPNG(SpriteLoader::Sprite *sprite, const char *filename, uint32 i
 					dst[x].b = 0;
 					/* Alpha channel is used from the original image (to allow transparency in remap colours) */
 					extern const byte _palmap_w2d[];
-					byte color = row_pointer[x * sizeof(uint8)];
-					dst[x].m = win_palette ? _palmap_w2d[color] : color;
+					byte colour = row_pointer[x * sizeof(uint8)];
+					dst[x].m = win_palette ? _palmap_w2d[colour] : colour;
 				}
 			} else {
 				dst[x].r = row_pointer[x * sizeof(uint32) + 0];
diff --git a/src/table/strgen_tables.h b/src/table/strgen_tables.h
index 12c9e17e4d..ba852ed60d 100644
--- a/src/table/strgen_tables.h
+++ b/src/table/strgen_tables.h
@@ -38,7 +38,7 @@ static const CmdStruct _cmd_structs[] = {
 	{"TINY_FONT",         EmitSingleChar, SCC_TINYFONT,           0, C_NONE},
 	{"BIG_FONT",          EmitSingleChar, SCC_BIGFONT,            0, C_NONE},
 
-	/* Colors */
+	/* Colours */
 	{"BLUE",              EmitSingleChar, SCC_BLUE,               0, C_NONE},
 	{"SILVER",            EmitSingleChar, SCC_SILVER,             0, C_NONE},
 	{"GOLD",              EmitSingleChar, SCC_GOLD,               0, C_NONE},
diff --git a/src/video/win32_v.cpp b/src/video/win32_v.cpp
index ed774fd660..934acc0611 100644
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -176,7 +176,7 @@ static void ClientSizeChanged(int w, int h)
 {
 	/* allocate new dib section of the new size */
 	if (AllocateDibSection(w, h)) {
-		/* mark all palette colors dirty */
+		/* mark all palette colours dirty */
 		_cur_palette.first_dirty = 0;
 		_cur_palette.count_dirty = 256;
 		_local_palette = _cur_palette;