diff --git a/jenkins/__init__.py b/jenkins/__init__.py
index e411c31..9a0bd52 100755
--- a/jenkins/__init__.py
+++ b/jenkins/__init__.py
@@ -830,7 +830,7 @@ class Jenkins(object):
         """Get information on this Master or item on Master.
 
         This information includes job list and view information and can be
-        used to retreive information on items such as job folders.
+        used to retrieve information on items such as job folders.
 
         :param item: item to get information about on this Master
         :param query: xpath to extract information about on this Master
@@ -2110,7 +2110,7 @@ class Jenkins(object):
         :param exception_message: Message to use for the exception.
                                   Formatted with ``name``, ``domain_name``,
                                   and ``folder_name``
-        :throws: :class:`JenkinsException` whenever the credentail
+        :throws: :class:`JenkinsException` whenever the credential
             does not exist in domain of folder
         '''
         if not self.credential_exists(name, folder_name, domain_name):
@@ -2118,12 +2118,12 @@ class Jenkins(object):
                                    % (name, domain_name, folder_name))
 
     def credential_exists(self, name, folder_name, domain_name='_'):
-        '''Check whether a credentail exists in domain of folder
+        '''Check whether a credential exists in domain of folder
 
-        :param name: Name of credentail, ``str``
+        :param name: Name of credential, ``str``
         :param folder_name: Folder name, ``str``
         :param domain_name: Domain name, default is '_', ``str``
-        :returns: ``True`` if credentail exists, ``False`` otherwise
+        :returns: ``True`` if credential exists, ``False`` otherwise
         '''
         try:
             return self.get_credential_info(name, folder_name,
@@ -2134,7 +2134,7 @@ class Jenkins(object):
     def get_credential_info(self, name, folder_name, domain_name='_'):
         '''Get credential information dictionary in domain of folder
 
-        :param name: Name of credentail, ``str``
+        :param name: Name of credential, ``str``
         :param folder_name: folder_name, ``str``
         :param domain_name: Domain name, default is '_', ``str``
         :returns: Dictionary of credential info, ``dict``
@@ -2165,7 +2165,7 @@ class Jenkins(object):
     def get_credential_config(self, name, folder_name, domain_name='_'):
         '''Get configuration of credential in domain of folder.
 
-        :param name: Name of credentail, ``str``
+        :param name: Name of credential, ``str``
         :param folder_name: Folder name, ``str``
         :param domain_name: Domain name, default is '_', ``str``
         :returns: Credential configuration (XML format)
@@ -2178,7 +2178,7 @@ class Jenkins(object):
 
     def create_credential(self, folder_name, config_xml,
                           domain_name='_'):
-        '''Create credentail in domain of folder
+        '''Create credential in domain of folder
 
         :param folder_name: Folder name, ``str``
         :param config_xml: New XML configuration, ``str``
@@ -2203,7 +2203,7 @@ class Jenkins(object):
     def delete_credential(self, name, folder_name, domain_name='_'):
         '''Delete credential from domain of folder
 
-        :param name: Name of credentail, ``str``
+        :param name: Name of credential, ``str``
         :param folder_name: Folder name, ``str``
         :param domain_name: Domain name, default is '_', ``str``
         '''
diff --git a/tests/jobs/test_build.py b/tests/jobs/test_build.py
index ba495c6..0efd503 100644
--- a/tests/jobs/test_build.py
+++ b/tests/jobs/test_build.py
@@ -34,7 +34,7 @@ class JenkinsBuildJobTest(JenkinsJobsTestBase):
 
     @patch.object(jenkins.Jenkins, 'maybe_add_crumb')
     @patch('jenkins.requests.Session.send', autospec=True)
-    def test_simple_no_content_lenght(self, session_send_mock,
+    def test_simple_no_content_length(self, session_send_mock,
                                       maybe_add_crumb_mock):
         maybe_add_crumb_mock.return_value = None
         session_send_mock.return_value = build_response_mock(
@@ -49,7 +49,7 @@ class JenkinsBuildJobTest(JenkinsJobsTestBase):
 
     @patch.object(jenkins.Jenkins, 'maybe_add_crumb')
     @patch('jenkins.requests.Session.send', autospec=True)
-    def test_assert_no_content_lenght_no_location(self, session_send_mock,
+    def test_assert_no_content_length_no_location(self, session_send_mock,
                                                   maybe_add_crumb_mock):
         maybe_add_crumb_mock.return_value = None
         session_send_mock.return_value = build_response_mock(
diff --git a/tests/test_credential.py b/tests/test_credential.py
index 8e7418b..1338356 100644
--- a/tests/test_credential.py
+++ b/tests/test_credential.py
@@ -84,11 +84,11 @@ class JenkinsAssertCredentialTest(JenkinsCredentialTestBase):
         ]
 
         with self.assertRaises(jenkins.JenkinsException) as context_manager:
-            self.j.assert_credential_exists('NonExistent', 'TestFoler')
+            self.j.assert_credential_exists('NonExistent', 'TestFolder')
         self.assertEqual(
             str(context_manager.exception),
             'credential[NonExistent] does not exist'
-            ' in the domain[_] of [TestFoler]')
+            ' in the domain[_] of [TestFolder]')
         self._check_requests(jenkins_mock.call_args_list)
 
     @patch.object(jenkins.Jenkins, 'jenkins_open')
@@ -97,7 +97,7 @@ class JenkinsAssertCredentialTest(JenkinsCredentialTestBase):
             json.dumps({'_class': 'com.cloudbees.hudson.plugins.folder.Folder'}),
             json.dumps({'id': 'ExistingCredential'})
         ]
-        self.j.assert_credential_exists('ExistingCredential', 'TestFoler')
+        self.j.assert_credential_exists('ExistingCredential', 'TestFolder')
         self._check_requests(jenkins_mock.call_args_list)