diff --git a/google/api_core/__init__.py b/google/api_core/__init__.py
index 605dd8be..b80ea372 100644
--- a/google/api_core/__init__.py
+++ b/google/api_core/__init__.py
@@ -14,7 +14,7 @@
 
 """Google API Core.
 
-This package contains common code and utilties used by Google client libraries.
+This package contains common code and utilities used by Google client libraries.
 """
 
 from google.api_core import version as api_core_version
diff --git a/google/api_core/client_info.py b/google/api_core/client_info.py
index 3e4376c9..48326799 100644
--- a/google/api_core/client_info.py
+++ b/google/api_core/client_info.py
@@ -48,7 +48,7 @@ class ClientInfo(object):
             ``'3.9.6'``.
         grpc_version (Optional[str]): The gRPC library version.
         api_core_version (str): The google-api-core library version.
-        gapic_version (Optional[str]): The sversion of gapic-generated client
+        gapic_version (Optional[str]): The version of gapic-generated client
             library, if the library was generated by gapic.
         client_library_version (Optional[str]): The version of the client
             library, generally used if the client library was not generated
diff --git a/google/api_core/datetime_helpers.py b/google/api_core/datetime_helpers.py
index 9470863a..c584c8cd 100644
--- a/google/api_core/datetime_helpers.py
+++ b/google/api_core/datetime_helpers.py
@@ -170,7 +170,7 @@ def to_rfc3339(value, ignore_zone=True):
             datetime object is ignored and the datetime is treated as UTC.
 
     Returns:
-        str: The RFC3339 formated string representing the datetime.
+        str: The RFC3339 formatted string representing the datetime.
     """
     if not ignore_zone and value.tzinfo is not None:
         # Convert to UTC and remove the time zone info.
diff --git a/google/api_core/exceptions.py b/google/api_core/exceptions.py
index aaba8791..35f2a6f8 100644
--- a/google/api_core/exceptions.py
+++ b/google/api_core/exceptions.py
@@ -73,7 +73,7 @@ class RetryError(GoogleAPIError):
 
     Args:
         message (str): The exception message.
-        cause (Exception): The last exception raised when retring the
+        cause (Exception): The last exception raised when retrying the
             function.
     """
 
diff --git a/google/api_core/extended_operation.py b/google/api_core/extended_operation.py
index 092eba4e..79d47f0d 100644
--- a/google/api_core/extended_operation.py
+++ b/google/api_core/extended_operation.py
@@ -101,7 +101,7 @@ def __init__(
     #     optional http_error_code = proto.Field(proto.INT32, number=3)
     #     optional http_error_msg = proto.Field(proto.STRING, number=4)
     #
-    # the ExtendedOperation subclass would provide property overrrides that map
+    # the ExtendedOperation subclass would provide property overrides that map
     # to these (poorly named) fields.
     @property
     def name(self):
diff --git a/google/api_core/future/polling.py b/google/api_core/future/polling.py
index 6e6aa5d4..f1e2a188 100644
--- a/google/api_core/future/polling.py
+++ b/google/api_core/future/polling.py
@@ -68,7 +68,7 @@ class PollingFuture(base.Future):
     The :meth:`done` method should be implemented by subclasses. The polling
     behavior will repeatedly call ``done`` until it returns True.
 
-    The actuall polling logic is encapsulated in :meth:`result` method. See
+    The actual polling logic is encapsulated in :meth:`result` method. See
     documentation for that method for details on how polling works.
 
     .. note::
@@ -82,7 +82,7 @@ class PollingFuture(base.Future):
             ``timeout`` argument is specified in :meth:`result` method it will
             override the ``polling.timeout`` property.
         retry (google.api_core.retry.Retry): DEPRECATED use ``polling`` instead.
-            If set, it will override ``polling`` paremeter for backward
+            If set, it will override ``polling`` parameter for backward
             compatibility.
     """
 
@@ -224,8 +224,8 @@ class documentation for the proper definition of timeout and deadline
         to set this parameter explicitly.
 
         If ``polling`` is provided (i.e. ``polling is not None``), it will be used
-        to controll the overall polling behavior and ``polling.timeout`` will
-        controll Polling Timeout unless it is overridden by ``timeout`` parameter
+        to control the overall polling behavior and ``polling.timeout`` will
+        control Polling Timeout unless it is overridden by ``timeout`` parameter
         as described above. If not provided, the``polling`` parameter specified
         during construction of this future (the ``polling`` argument in the
         constructor) will be used instead. Note: since the ``timeout`` argument may
diff --git a/google/api_core/gapic_v1/client_info.py b/google/api_core/gapic_v1/client_info.py
index fab0f542..2de1be7f 100644
--- a/google/api_core/gapic_v1/client_info.py
+++ b/google/api_core/gapic_v1/client_info.py
@@ -36,7 +36,7 @@ class ClientInfo(client_info.ClientInfo):
             ``'3.9.6'``.
         grpc_version (Optional[str]): The gRPC library version.
         api_core_version (str): The google-api-core library version.
-        gapic_version (Optional[str]): The sversion of gapic-generated client
+        gapic_version (Optional[str]): The version of gapic-generated client
             library, if the library was generated by gapic.
         client_library_version (Optional[str]): The version of the client
             library, generally used if the client library was not generated
diff --git a/google/api_core/general_helpers.py b/google/api_core/general_helpers.py
index fba78026..a6af45b7 100644
--- a/google/api_core/general_helpers.py
+++ b/google/api_core/general_helpers.py
@@ -12,5 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# This import for backward compatibiltiy only.
+# This import for backward compatibility only.
 from functools import wraps  # noqa: F401 pragma: NO COVER
diff --git a/google/api_core/operations_v1/abstract_operations_client.py b/google/api_core/operations_v1/abstract_operations_client.py
index e02bc199..78a61746 100644
--- a/google/api_core/operations_v1/abstract_operations_client.py
+++ b/google/api_core/operations_v1/abstract_operations_client.py
@@ -468,7 +468,7 @@ def get_operation(
         Returns:
             google.longrunning.operations_pb2.Operation:
                 This resource represents a long-
-                unning operation that is the result of a
+                running operation that is the result of a
                 network API call.
 
         """
diff --git a/google/api_core/operations_v1/operations_client_config.py b/google/api_core/operations_v1/operations_client_config.py
index 70cfd70a..3ad3548c 100644
--- a/google/api_core/operations_v1/operations_client_config.py
+++ b/google/api_core/operations_v1/operations_client_config.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""gapic configuration for the googe.longrunning.operations client."""
+"""gapic configuration for the google.longrunning.operations client."""
 
 # DEPRECATED: retry and timeout classes are instantiated directly
 config = {
diff --git a/google/api_core/operations_v1/transports/rest.py b/google/api_core/operations_v1/transports/rest.py
index bb6cd99c..bb9000f4 100644
--- a/google/api_core/operations_v1/transports/rest.py
+++ b/google/api_core/operations_v1/transports/rest.py
@@ -108,7 +108,7 @@ def __init__(
                 "https", but for testing or local servers,
                 "http" can be specified.
             http_options: a dictionary of http_options for transcoding, to override
-                the defaults from operatons.proto.  Each method has an entry
+                the defaults from operations.proto.  Each method has an entry
                 with the corresponding http rules as value.
             path_prefix: path prefix (usually represents API version). Set to
                 "v1" by default.
@@ -246,7 +246,7 @@ def _get_operation(
         Returns:
             ~.operations_pb2.Operation:
                 This resource represents a long-
-                unning operation that is the result of a
+                running operation that is the result of a
                 network API call.
 
         """
diff --git a/google/api_core/protobuf_helpers.py b/google/api_core/protobuf_helpers.py
index 896e89c1..f1abf068 100644
--- a/google/api_core/protobuf_helpers.py
+++ b/google/api_core/protobuf_helpers.py
@@ -288,10 +288,10 @@ def field_mask(original, modified):
 
     Args:
         original (~google.protobuf.message.Message): the original message.
-            If set to None, this field will be interpretted as an empty
+            If set to None, this field will be interpreted as an empty
             message.
         modified (~google.protobuf.message.Message): the modified message.
-            If set to None, this field will be interpretted as an empty
+            If set to None, this field will be interpreted as an empty
             message.
 
     Returns:
diff --git a/google/api_core/retry.py b/google/api_core/retry.py
index f9207a12..df1e65e0 100644
--- a/google/api_core/retry.py
+++ b/google/api_core/retry.py
@@ -16,7 +16,7 @@
 
 The :class:`Retry` decorator can be used to retry functions that raise
 exceptions using exponential backoff. Because a exponential sleep algorithm is
-used, the retry is limited by a `deadline`. The deadline is the maxmimum amount
+used, the retry is limited by a `deadline`. The deadline is the maximum amount
 of time a method can block. This is used instead of total number of retries
 because it is difficult to ascertain the amount of time a function can block
 when using total number of retries and exponential backoff.
@@ -265,7 +265,7 @@ class Retry(object):
 
     RPC Timeout: a value supplied by the client to the server so
     that the server side knows the maximum amount of time it is expected to
-    spend handling that specifc RPC. For example, in the case of gRPC transport,
+    spend handling that specific RPC. For example, in the case of gRPC transport,
     RPC Timeout is represented by setting "grpc-timeout" header in the HTTP2
     request. The `timeout` property of this class normally never represents the
     RPC Timeout as it is handled separately by the ``google.api_core.timeout``
@@ -285,7 +285,7 @@ class Retry(object):
 
     With the actual timeout types being defined above, the client libraries
     often refer to just Timeout without clarifying which type specifically
-    that is. In that case the actual timeout type (sometimes also refered to as
+    that is. In that case the actual timeout type (sometimes also referred to as
     Logical Timeout) can be determined from the context. If it is a unary rpc
     call (i.e. a regular one) Timeout usually stands for the RPC Timeout (if
     provided directly as a standalone value) or Retry Timeout (if provided as
diff --git a/google/api_core/retry_async.py b/google/api_core/retry_async.py
index 81698838..739e88d9 100644
--- a/google/api_core/retry_async.py
+++ b/google/api_core/retry_async.py
@@ -169,7 +169,7 @@ class AsyncRetry:
             if the given exception is retryable.
         initial (float): The minimum a,out of time to delay in seconds. This
             must be greater than 0.
-        maximum (float): The maximum amout of time to delay in seconds.
+        maximum (float): The maximum amount of time to delay in seconds.
         multiplier (float): The multiplier applied to the delay.
         timeout (float): How long to keep retrying in seconds.
         on_error (Callable[Exception]): A function to call while processing
@@ -287,9 +287,9 @@ def with_delay(self, initial=None, maximum=None, multiplier=None):
         """Return a copy of this retry with the given delay options.
 
         Args:
-            initial (float): The minimum amout of time to delay. This must
+            initial (float): The minimum amount of time to delay. This must
                 be greater than 0.
-            maximum (float): The maximum amout of time to delay.
+            maximum (float): The maximum amount of time to delay.
             multiplier (float): The multiplier applied to the delay.
 
         Returns:
diff --git a/google/api_core/timeout.py b/google/api_core/timeout.py
index 3546d540..868e3e9f 100644
--- a/google/api_core/timeout.py
+++ b/google/api_core/timeout.py
@@ -220,9 +220,9 @@ class ExponentialTimeout(object):
         deadline (Optional[float]): The overall deadline across all
             invocations. This is used to prevent a very large calculated
             timeout from pushing the overall execution time over the deadline.
-            This is especially useful in conjuction with
+            This is especially useful in conjunction with
             :mod:`google.api_core.retry`. If ``None``, the timeouts will not
-            be adjusted to accomodate an overall deadline.
+            be adjusted to accommodate an overall deadline.
     """
 
     def __init__(
@@ -238,7 +238,7 @@ def __init__(
         self._deadline = deadline
 
     def with_deadline(self, deadline):
-        """Return a copy of this teimout with the given deadline.
+        """Return a copy of this timeout with the given deadline.
 
         Args:
             deadline (float): The overall deadline across all invocations.
diff --git a/tests/asyncio/test_grpc_helpers_async.py b/tests/asyncio/test_grpc_helpers_async.py
index 2f8f3460..33ce8212 100644
--- a/tests/asyncio/test_grpc_helpers_async.py
+++ b/tests/asyncio/test_grpc_helpers_async.py
@@ -280,7 +280,7 @@ def test_wrap_errors_streaming(wrap_stream_errors):
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.aio.secure_channel")
 def test_create_channel_implicit(grpc_secure_channel, default, composite_creds_call):
@@ -305,7 +305,7 @@ def test_create_channel_implicit(grpc_secure_channel, default, composite_creds_c
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.aio.secure_channel")
 def test_create_channel_implicit_with_default_host(
@@ -329,7 +329,7 @@ def test_create_channel_implicit_with_default_host(
 @mock.patch("grpc.composite_channel_credentials")
 @mock.patch(
     "google.auth.default",
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.aio.secure_channel")
 def test_create_channel_implicit_with_ssl_creds(
@@ -351,7 +351,7 @@ def test_create_channel_implicit_with_ssl_creds(
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.aio.secure_channel")
 def test_create_channel_implicit_with_scopes(
@@ -372,7 +372,7 @@ def test_create_channel_implicit_with_scopes(
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.aio.secure_channel")
 def test_create_channel_implicit_with_default_scopes(
@@ -492,7 +492,7 @@ def test_create_channel_explicit_with_quota_project(
     autospec=True,
     return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
-def test_create_channnel_with_credentials_file(
+def test_create_channel_with_credentials_file(
     load_credentials_from_file, grpc_secure_channel, composite_creds_call
 ):
     target = "example.com:443"
diff --git a/tests/unit/gapic/test_method.py b/tests/unit/gapic/test_method.py
index b1035413..03c2260d 100644
--- a/tests/unit/gapic/test_method.py
+++ b/tests/unit/gapic/test_method.py
@@ -121,7 +121,7 @@ def test_invoke_wrapped_method_with_metadata_as_none():
 
 
 @mock.patch("time.sleep")
-def test_wrap_method_with_default_retry_and_timeout(unusued_sleep):
+def test_wrap_method_with_default_retry_and_timeout(unused_sleep):
     method = mock.Mock(
         spec=["__call__"], side_effect=[exceptions.InternalServerError(None), 42]
     )
@@ -139,7 +139,7 @@ def test_wrap_method_with_default_retry_and_timeout(unusued_sleep):
 
 
 @mock.patch("time.sleep")
-def test_wrap_method_with_default_retry_and_timeout_using_sentinel(unusued_sleep):
+def test_wrap_method_with_default_retry_and_timeout_using_sentinel(unused_sleep):
     method = mock.Mock(
         spec=["__call__"], side_effect=[exceptions.InternalServerError(None), 42]
     )
@@ -160,7 +160,7 @@ def test_wrap_method_with_default_retry_and_timeout_using_sentinel(unusued_sleep
 
 
 @mock.patch("time.sleep")
-def test_wrap_method_with_overriding_retry_and_timeout(unusued_sleep):
+def test_wrap_method_with_overriding_retry_and_timeout(unused_sleep):
     method = mock.Mock(spec=["__call__"], side_effect=[exceptions.NotFound(None), 42])
     default_retry = retry.Retry()
     default_timeout = timeout.ConstantTimeout(60)
diff --git a/tests/unit/operations_v1/test_operations_rest_client.py b/tests/unit/operations_v1/test_operations_rest_client.py
index 149c463c..4ab4f1f7 100644
--- a/tests/unit/operations_v1/test_operations_rest_client.py
+++ b/tests/unit/operations_v1/test_operations_rest_client.py
@@ -592,7 +592,7 @@ def test_get_operation_rest_failure():
         response_value.request = mock_request
         req.return_value = response_value
         with pytest.raises(core_exceptions.GoogleAPIError):
-            client.get_operation("sammple0/operations/sample1")
+            client.get_operation("sample0/operations/sample1")
 
 
 def test_delete_operation_rest(
diff --git a/tests/unit/test_exceptions.py b/tests/unit/test_exceptions.py
index eb0b12d1..07a36817 100644
--- a/tests/unit/test_exceptions.py
+++ b/tests/unit/test_exceptions.py
@@ -355,7 +355,7 @@ def test_error_details_from_grpc_response():
     status.details.append(status_br_detail)
     status.details.append(status_ei_detail)
 
-    # Actualy error doesn't matter as long as its grpc.Call,
+    # The actual error doesn't matter as long as its grpc.Call,
     # because from_call is mocked.
     error = mock.create_autospec(grpc.Call, instance=True)
     with mock.patch("grpc_status.rpc_status.from_call") as m:
diff --git a/tests/unit/test_grpc_helpers.py b/tests/unit/test_grpc_helpers.py
index 9fe938d6..a99dc280 100644
--- a/tests/unit/test_grpc_helpers.py
+++ b/tests/unit/test_grpc_helpers.py
@@ -222,7 +222,7 @@ def test_wrap_stream_prefetch_disabled():
     callable_.assert_called_once_with(1, 2, three="four")
 
 
-def test_wrap_stream_iterable_iterface():
+def test_wrap_stream_iterable_interface():
     response_iter = mock.create_autospec(grpc.Call, instance=True)
     callable_ = mock.Mock(spec=["__call__"], return_value=response_iter)
 
@@ -352,7 +352,7 @@ def test_wrap_errors_streaming(wrap_stream_errors):
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.secure_channel")
 def test_create_channel_implicit(grpc_secure_channel, default, composite_creds_call):
@@ -410,7 +410,7 @@ def test_create_channel_implicit_with_default_host(
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.secure_channel")
 def test_create_channel_implicit_with_ssl_creds(
@@ -437,7 +437,7 @@ def test_create_channel_implicit_with_ssl_creds(
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.secure_channel")
 def test_create_channel_implicit_with_scopes(
@@ -462,7 +462,7 @@ def test_create_channel_implicit_with_scopes(
 @mock.patch(
     "google.auth.default",
     autospec=True,
-    return_value=(mock.sentinel.credentials, mock.sentinel.projet),
+    return_value=(mock.sentinel.credentials, mock.sentinel.project),
 )
 @mock.patch("grpc.secure_channel")
 def test_create_channel_implicit_with_default_scopes(