diff --git a/testsuites/fstests/fsrdwr/init.c b/testsuites/fstests/fsrdwr/init.c
index 18acac73a3..bdd0a4a590 100644
--- a/testsuites/fstests/fsrdwr/init.c
+++ b/testsuites/fstests/fsrdwr/init.c
@@ -373,7 +373,7 @@ lseek_test (void)
   rtems_test_assert (pos == total_written);
 
   /*
-   * ftruncate shall not change the posistion
+   * ftruncate shall not change the position
    */
   status = ftruncate (fd, total_written + 1);
   rtems_test_assert (status == 0);
@@ -447,7 +447,7 @@ lseek_test (void)
   rtems_test_assert (status == 0);
 
   /*
-   * Open the file withe O_RDWR and check the lseek
+   * Open the file with O_RDWR and check the lseek
    */
 
   fd = open (name01, O_RDWR);
diff --git a/testsuites/fstests/fsrename/test.c b/testsuites/fstests/fsrename/test.c
index 086b8f84e7..221aa70862 100644
--- a/testsuites/fstests/fsrename/test.c
+++ b/testsuites/fstests/fsrename/test.c
@@ -214,11 +214,11 @@ static void arg_test (void)
   rtems_test_assert (status == 0);
 
   /*
-   * The new argument points to a non existant file and
+   * The new argument points to a nonexistent file and
    * the old argument points to a file.
    */
 
-  puts ("\nRename file with non existant file\n");
+  puts ("\nRename file with nonexistent file\n");
 
   fd = creat (name01, mode);
   rtems_test_assert (fd >= 0);
@@ -235,12 +235,12 @@ static void arg_test (void)
   EXPECT_EQUAL (0, unlink, name02);
 
   /*
-   * The new argument points to a non existant file and
+   * The new argument points to a nonexistent file and
    * the old argument points to a file where a component of the
    * filepath does not exist.
    */
 
-  puts ("\nRename file with non existant filepath\n");
+  puts ("\nRename file with nonexistent filepath\n");
 
   status = mkdir (dir01, mode);
   rtems_test_assert (status == 0);
@@ -257,11 +257,11 @@ static void arg_test (void)
   EXPECT_EQUAL (0, rmdir, dir01);
 
   /*
-   * The new argument points to a non existant directory and
+   * The new argument points to a nonexistent directory and
    * the old argument points to a directory.
    */
 
-  puts ("\nRename directory with non existant directory\n");
+  puts ("\nRename directory with nonexistent directory\n");
 
   status = mkdir (dir01, mode);
   rtems_test_assert (status == 0);
diff --git a/testsuites/fstests/fssymlink/test.c b/testsuites/fstests/fssymlink/test.c
index 064273fed9..9fc8c9bd2d 100644
--- a/testsuites/fstests/fssymlink/test.c
+++ b/testsuites/fstests/fssymlink/test.c
@@ -210,7 +210,7 @@ static void symlink_rename_test (void)
    * the old argument points to a symbolic link to another file.
    */
 
-  puts ("\nOld is a simbolic link and rename operates on the simbolic link itself\n");
+  puts ("\nOld is a symbolic link and rename operates on the symbolic link itself\n");
 
   fd = creat (name01, mode);
   rtems_test_assert (fd >= 0);
@@ -249,7 +249,7 @@ static void symlink_rename_test (void)
    * the old argument points to a file.
    */
 
-  puts ("\nNew is a simbolic link and rename operates on the simbolic link itself\n");
+  puts ("\nNew is a symbolic link and rename operates on the symbolic link itself\n");
 
   fd = creat (name01, mode);
   rtems_test_assert (fd >= 0);
diff --git a/testsuites/fstests/tftpfs/init.c b/testsuites/fstests/tftpfs/init.c
index 4546d4bc5c..c777a4f2a5 100644
--- a/testsuites/fstests/tftpfs/init.c
+++ b/testsuites/fstests/tftpfs/init.c
@@ -71,7 +71,7 @@
 #define SMALL_WINDOW_SIZE           4
 #define T_no_more_interactions() T_assert_true( \
   _Tftp_Has_no_more_interactions(), \
-  "The TFTP client skiped some final network interactions." \
+  "The TFTP client skipped some final network interactions." \
 )
 
 /*
@@ -608,7 +608,7 @@ static int rdwt_tftp_client_file(
             if ( data_buffer[i] != get_file_content( bytes_total + i ) ) {
               T_true(
                 false,
-                "FTP Client: wrong file content '%c' (expected '%c') at positon %zd",
+                "FTP Client: wrong file content '%c' (expected '%c') at position %zd",
                 (int) ( isprint( (int) data_buffer[i] ) ? data_buffer[i] : '?' ),
                 (int) get_file_content( bytes_total + i ),
                 bytes_total + i
diff --git a/testsuites/fstests/tftpfs/tftpfs_udp_network_fake.c b/testsuites/fstests/tftpfs/tftpfs_udp_network_fake.c
index bbc174d802..35722db0c9 100644
--- a/testsuites/fstests/tftpfs/tftpfs_udp_network_fake.c
+++ b/testsuites/fstests/tftpfs/tftpfs_udp_network_fake.c
@@ -202,7 +202,7 @@ const char *_Tftp_Get_error_str( uint16_t error_code )
     "Unknown transfer ID",
     "File already exists",
     "No such user",
-    "Option negociation failed",
+    "Option negotiation failed",
   };
   const char *result = unknown_str;
 
@@ -660,7 +660,7 @@ static void set_ip_addr_from_str(
       bytes + 2,
       bytes + 3
     );
-    T_quiet_true( res == 4, "Connot parse IPv4 address: \"%s\"", addr_str );
+    T_quiet_true( res == 4, "Cannot parse IPv4 address: \"%s\"", addr_str );
   } else {
     /* IPv6 address */
     struct sockaddr_in6 *ipv6_addr = (struct sockaddr_in6 *) addr;
@@ -686,7 +686,7 @@ static void set_ip_addr_from_str(
       words + 6,
       words + 7
     );
-    T_quiet_true( res == 8, "Connot parse IPv6 address: \"%s\"", addr_str );
+    T_quiet_true( res == 8, "Cannot parse IPv6 address: \"%s\"", addr_str );
     for ( i = 0; i < 8; ++i ) {
       words[i] = htons( words[i] );
     }
@@ -856,8 +856,8 @@ int setsockopt(
     T_VERBOSE,
     "setsockopt(sockfd=%d, level=%s, optname=%s, optval=%dms )",
     sockfd,
-    ( level == SOL_SOCKET    ) ? "SOL_SOCKET"  : "UNKONWN",
-    ( optname == SO_RCVTIMEO ) ? "SO_RCVTIMEO" : "UNKONWN",
+    ( level == SOL_SOCKET    ) ? "SOL_SOCKET"  : "UNKNOWN",
+    ( optname == SO_RCVTIMEO ) ? "SO_RCVTIMEO" : "UNKNOWN",
     ( optname == SO_RCVTIMEO ) ?
       (int) ( tv->tv_sec * 1000 + tv->tv_usec / 1000 ) : -1
   );
@@ -895,8 +895,8 @@ int setsockopt(
     T_VERBOSE,
     "[setsockopt(sockfd=%d, level=%s, optname=%s, optval=%"PRIu32"ms )] = %d",
     sockfd,
-    ( level == SOL_SOCKET    ) ? "SOL_SOCKET"  : "UNKONWN",
-    ( optname == SO_RCVTIMEO ) ? "SO_RCVTIMEO" : "UNKONWN",
+    ( level == SOL_SOCKET    ) ? "SOL_SOCKET"  : "UNKNOWN",
+    ( optname == SO_RCVTIMEO ) ? "SO_RCVTIMEO" : "UNKNOWN",
     ( i < MAX_SOCKET_FD ) ? (int) control->receive_timeout_ms[i] : -1,
     result
   );