diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index 0084262bd..d51e4fe30 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -1120,7 +1120,7 @@ FT_BEGIN_HEADER
   /*      `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec.   */
   /*                                                                       */
   /*    FT_FACE_FLAG_FIXED_WIDTH ::                                        */
-  /*      The face contains fixed-width characters (like Courier, Lucido,  */
+  /*      The face contains fixed-width characters (like Courier, Lucida,  */
   /*      MonoType, etc.).                                                 */
   /*                                                                       */
   /*    FT_FACE_FLAG_SFNT ::                                               */
diff --git a/include/freetype/ftglyph.h b/include/freetype/ftglyph.h
index 6b5179251..79879a7ac 100644
--- a/include/freetype/ftglyph.h
+++ b/include/freetype/ftglyph.h
@@ -453,7 +453,7 @@ FT_BEGIN_HEADER
   /*                                                                       */
   /*                                                                       */
   /*        // load glyph                                                  */
-  /*        error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT );     */
+  /*        error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );    */
   /*                                                                       */
   /*        // extract glyph image                                         */
   /*        error = FT_Get_Glyph( face->glyph, &glyph );                   */
diff --git a/src/base/ftgxval.c b/src/base/ftgxval.c
index 08e3b8c5d..ff24d336d 100644
--- a/src/base/ftgxval.c
+++ b/src/base/ftgxval.c
@@ -2,7 +2,7 @@
 /*                                                                         */
 /*  ftgxval.c                                                              */
 /*                                                                         */
-/*    FreeType API for validating TrueTyepGX/AAT tables (body).            */
+/*    FreeType API for validating TrueTypeGX/AAT tables (body).            */
 /*                                                                         */
 /*  Copyright 2004-2017 by                                                 */
 /*  Masatake YAMATO, Redhat K.K,                                           */
diff --git a/src/cff/cf2error.h b/src/cff/cf2error.h
index 512edd1d2..d2c770d29 100644
--- a/src/cff/cf2error.h
+++ b/src/cff/cf2error.h
@@ -66,7 +66,7 @@ FT_BEGIN_HEADER
    * model our error mechanism on a Java-like exception mechanism.
    * When we assign an error code we are thus `throwing' an error.
    *
-   * The perservation of an error code is done by coding convention.
+   * The preservation of an error code is done by coding convention.
    * Upon a function call if the error code is anything other than
    * `FT_Err_Ok', which is guaranteed to be zero, we
    * will return without altering that error.  This will allow the
diff --git a/src/gxvalid/gxvalid.h b/src/gxvalid/gxvalid.h
index adb11498e..78116ef85 100644
--- a/src/gxvalid/gxvalid.h
+++ b/src/gxvalid/gxvalid.h
@@ -2,7 +2,7 @@
 /*                                                                         */
 /*  gxvalid.h                                                              */
 /*                                                                         */
-/*    TrueTyeeGX/AAT table validation (specification only).                */
+/*    TrueTypeGX/AAT table validation (specification only).                */
 /*                                                                         */
 /*  Copyright 2005-2017 by                                                 */
 /*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
diff --git a/src/gxvalid/gxvcommn.c b/src/gxvalid/gxvcommn.c
index f521e5e85..db0a91ea7 100644
--- a/src/gxvalid/gxvcommn.c
+++ b/src/gxvalid/gxvcommn.c
@@ -454,7 +454,7 @@
   }
 
 
-  /* ================= Segment Single Format 2 Loolup Table ============== */
+  /* ================= Segment Single Format 2 Lookup Table ============== */
   /*
    * Apple spec says:
    *
diff --git a/src/sfnt/pngshim.c b/src/sfnt/pngshim.c
index de5acca2d..96fc08e3b 100644
--- a/src/sfnt/pngshim.c
+++ b/src/sfnt/pngshim.c
@@ -26,7 +26,7 @@
 
 #ifdef FT_CONFIG_OPTION_USE_PNG
 
-  /* We always include <stjmp.h>, so make libpng shut up! */
+  /* We always include <setjmp.h>, so make libpng shut up! */
 #define PNG_SKIP_SETJMP_CHECK 1
 #include <png.h>
 #include "pngshim.h"