diff --git a/CHANGES.rst b/CHANGES.rst
index c65a1a20e7..06e31e26ef 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -109,7 +109,7 @@ dev (master)
 * Fix some bugs that occur when modules incautiously patch the queue module.
   (Pull #1061)
 
-* Prevent retries from occuring on read timeouts for which the request method
+* Prevent retries from occurring on read timeouts for which the request method
   was not in the method whitelist. (Issue #1059)
 
 * Changed the PyOpenSSL contrib module to lazily load idna to avoid
@@ -143,7 +143,7 @@ dev (master)
   non-httplib underlying FPs. (Pull #990)
 
 * Empty filenames in multipart headers are now emitted as such, rather than
-  being supressed. (Issue #1015)
+  being suppressed. (Issue #1015)
 
 * Prefer user-supplied Host headers on chunked uploads. (Issue #1009)
 
@@ -504,7 +504,7 @@ dev (master)
 * All errors during a retry-enabled request should be wrapped in
   ``urllib3.exceptions.MaxRetryError``, including timeout-related exceptions
   which were previously exempt. Underlying error is accessible from the
-  ``.reason`` propery. (Issue #326)
+  ``.reason`` property. (Issue #326)
 
 * ``urllib3.exceptions.ConnectionError`` renamed to
   ``urllib3.exceptions.ProtocolError``. (Issue #326)
diff --git a/urllib3/contrib/securetransport.py b/urllib3/contrib/securetransport.py
index 2cac70f7f7..ea54c0c79b 100644
--- a/urllib3/contrib/securetransport.py
+++ b/urllib3/contrib/securetransport.py
@@ -88,7 +88,7 @@
 SSL_WRITE_BLOCKSIZE = 16384
 
 # This is our equivalent of util.ssl_.DEFAULT_CIPHERS, but expanded out to
-# individual cipher suites. We need to do this becuase this is how
+# individual cipher suites. We need to do this because this is how
 # SecureTransport wants them.
 CIPHER_SUITES = [
     SecurityConst.TLS_AES_256_GCM_SHA384,
diff --git a/urllib3/exceptions.py b/urllib3/exceptions.py
index 6c4be58106..7bbaa9871f 100644
--- a/urllib3/exceptions.py
+++ b/urllib3/exceptions.py
@@ -154,7 +154,7 @@ class ResponseError(HTTPError):
 
 
 class SecurityWarning(HTTPWarning):
-    "Warned when perfoming security reducing actions"
+    "Warned when performing security reducing actions"
     pass
 
 
diff --git a/urllib3/fields.py b/urllib3/fields.py
index 19b0ae0c88..37fe64a3e8 100644
--- a/urllib3/fields.py
+++ b/urllib3/fields.py
@@ -121,7 +121,7 @@ def _render_parts(self, header_parts):
         'Content-Disposition' fields.
 
         :param header_parts:
-            A sequence of (k, v) typles or a :class:`dict` of (k, v) to format
+            A sequence of (k, v) tuples or a :class:`dict` of (k, v) to format
             as `k1="v1"; k2="v2"; ...`.
         """
         parts = []
diff --git a/urllib3/poolmanager.py b/urllib3/poolmanager.py
index 4ae91744db..ca33674826 100644
--- a/urllib3/poolmanager.py
+++ b/urllib3/poolmanager.py
@@ -358,7 +358,7 @@ class ProxyManager(PoolManager):
         The URL of the proxy to be used.
 
     :param proxy_headers:
-        A dictionary contaning headers that will be sent to the proxy. In case
+        A dictionary containing headers that will be sent to the proxy. In case
         of HTTP they are being sent with each request, while in the
         HTTPS/CONNECT case they are sent only once. Could be used for proxy
         authentication.
diff --git a/urllib3/request.py b/urllib3/request.py
index bfd7a24548..855f25a350 100644
--- a/urllib3/request.py
+++ b/urllib3/request.py
@@ -117,7 +117,7 @@ def request_encode_body(self, method, url, fields=None, headers=None,
             }
 
         When uploading a file, providing a filename (the first parameter of the
-        tuple) is optional but recommended to best mimick behavior of browsers.
+        tuple) is optional but recommended to best mimic behavior of browsers.
 
         Note that if ``headers`` are supplied, the 'Content-Type' header will
         be overwritten because it depends on the dynamic random boundary string
diff --git a/urllib3/util/ssl_.py b/urllib3/util/ssl_.py
index f8c220c08b..42a9e98dd0 100644
--- a/urllib3/util/ssl_.py
+++ b/urllib3/util/ssl_.py
@@ -183,7 +183,7 @@ def resolve_cert_reqs(candidate):
     the wrap_socket function/method from the ssl module.
     Defaults to :data:`ssl.CERT_NONE`.
     If given a string it is assumed to be the name of the constant in the
-    :mod:`ssl` module or its abbrevation.
+    :mod:`ssl` module or its abbreviation.
     (So you can specify `REQUIRED` instead of `CERT_REQUIRED`.
     If it's neither `None` nor a string we assume it is already the numeric
     constant which can directly be passed to wrap_socket.