diff --git a/tests/test_key_revocation_integration.py b/tests/test_key_revocation_integration.py
index 213b5f26..05b30586 100755
--- a/tests/test_key_revocation_integration.py
+++ b/tests/test_key_revocation_integration.py
@@ -254,7 +254,7 @@ def test_snapshot_key_revocation(self):
     # because the timestamp key has changed; Snapshot, because  Root has
     # changed, and Timesamp, because it must sign its metadata with a new key.
     repository.root.load_signing_key(self.role_keys['root']['private'])
-    # Note: we added Timetamp's key to the Snapshot role.
+    # Note: we added Timestamp's key to the Snapshot role.
     repository.snapshot.load_signing_key(self.role_keys['timestamp']['private'])
     repository.timestamp.load_signing_key(self.role_keys['timestamp']['private'])
     repository.writeall()
@@ -306,7 +306,7 @@ def test_targets_key_revocation(self):
     # because the timestamp key has changed; Snapshot, because  Root has
     # changed, and Timestamp because it must sign its metadata with a new key.
     repository.root.load_signing_key(self.role_keys['root']['private'])
-    # Note: we added Timetamp's key to the Targets role.
+    # Note: we added Timestamp's key to the Targets role.
     repository.targets.load_signing_key(self.role_keys['timestamp']['private'])
     repository.snapshot.load_signing_key(self.role_keys['snapshot']['private'])
     repository.timestamp.load_signing_key(self.role_keys['timestamp']['private'])
@@ -362,7 +362,7 @@ def test_root_key_revocation(self):
     repository.root.load_signing_key(self.role_keys['targets']['private'])
     repository.root.load_signing_key(self.role_keys['timestamp']['private'])
 
-    # Note: We added the Snapshot, Targets, and Timetamp keys to the Root role.
+    # Note: We added the Snapshot, Targets, and Timestampkeys to the Root role.
     # The Root's expected private key has not been loaded yet, so that we can
     # verify that refresh() correctly raises a
     # securesystemslib.exceptions.BadSignatureError exception.
diff --git a/tuf/keydb.py b/tuf/keydb.py
index 942795eb..e2e06bb6 100755
--- a/tuf/keydb.py
+++ b/tuf/keydb.py
@@ -139,7 +139,7 @@ def create_keydb_from_root_metadata(root_metadata, repository_name='default'):
           add_key(key_dict, keyid=None, repository_name=repository_name)
 
       # Although keyid duplicates should *not* occur (unique dict keys), log a
-      # warning and continue.  Howerver, 'key_dict' may have already been
+      # warning and continue.  However, 'key_dict' may have already been
       # adding to the keydb elsewhere.
       except tuf.exceptions.KeyAlreadyExistsError as e: # pragma: no cover
         logger.warning(e)
diff --git a/tuf/repository_lib.py b/tuf/repository_lib.py
index 61607865..6d57fa04 100755
--- a/tuf/repository_lib.py
+++ b/tuf/repository_lib.py
@@ -1997,7 +1997,7 @@ def create_tuf_client_directory(repository_directory, client_directory):
 
   # If the client's metadata directory does not already exist, create it and
   # any of its parent directories, otherwise raise an exception.  An exception
-  # is raised to avoid accidentally overwritting previous metadata.
+  # is raised to avoid accidentally overwriting previous metadata.
   try:
     os.makedirs(client_metadata_directory)
 
diff --git a/tuf/scripts/repo.py b/tuf/scripts/repo.py
index 12bb022d..abafa08f 100755
--- a/tuf/scripts/repo.py
+++ b/tuf/scripts/repo.py
@@ -565,7 +565,7 @@ def remove_verification_key(parsed_arguments):
     # It is assumed remove_verification_key() only raises
     # securesystemslib.exceptions.Error and
     # securesystemslib.exceptions.FormatError, and the latter is not raised
-    # bacause a valid key should have been returned by
+    # because a valid key should have been returned by
     # import_publickey_from_file().
     except securesystemslib.exceptions.Error:
       print(repr(keypath) + ' is not a trusted key.  Skipping.')