diff --git a/doc/keepalive.md b/doc/keepalive.md
index a54a4fa033c..4d0271ec181 100644
--- a/doc/keepalive.md
+++ b/doc/keepalive.md
@@ -1,4 +1,4 @@
-# Keepalive User Guide for gRPC Core (and dependants)
+# Keepalive User Guide for gRPC Core (and dependents)
 
 The keepalive ping is a way to check if a channel is currently working by sending HTTP2 pings over the transport. It is sent periodically, and if the ping is not acknowledged by the peer within a certain timeout period, the transport is disconnected.
 
diff --git a/include/grpc/impl/codegen/sync_generic.h b/include/grpc/impl/codegen/sync_generic.h
index d64db58a842..eabdc513f48 100644
--- a/include/grpc/impl/codegen/sync_generic.h
+++ b/include/grpc/impl/codegen/sync_generic.h
@@ -18,7 +18,7 @@
 
 #ifndef GRPC_IMPL_CODEGEN_SYNC_GENERIC_H
 #define GRPC_IMPL_CODEGEN_SYNC_GENERIC_H
-/* Generic type defintions for gpr_sync. */
+/* Generic type definitions for gpr_sync. */
 
 #include <grpc/impl/codegen/port_platform.h>
 
diff --git a/src/core/ext/filters/client_channel/subchannel.h b/src/core/ext/filters/client_channel/subchannel.h
index de447d3a2a9..fde19dc4f2c 100644
--- a/src/core/ext/filters/client_channel/subchannel.h
+++ b/src/core/ext/filters/client_channel/subchannel.h
@@ -292,7 +292,7 @@ class Subchannel {
     bool empty() const { return watchers_.empty(); }
 
    private:
-    // TODO(roth): Once we can use C++-14 heterogenous lookups, this can
+    // TODO(roth): Once we can use C++-14 heterogeneous lookups, this can
     // be a set instead of a map.
     Map<ConnectivityStateWatcherInterface*,
         OrphanablePtr<ConnectivityStateWatcherInterface>>
diff --git a/src/core/lib/gprpp/memory.h b/src/core/lib/gprpp/memory.h
index 149db3858aa..68717dd019d 100644
--- a/src/core/lib/gprpp/memory.h
+++ b/src/core/lib/gprpp/memory.h
@@ -37,7 +37,7 @@ inline T* New(Args&&... args) {
   return new (p) T(std::forward<Args>(args)...);
 }
 
-// Gets the base pointer of any class, in case of multiple inheritence.
+// Gets the base pointer of any class, in case of multiple inheritance.
 // Used by Delete and friends.
 template <typename T, bool isPolymorphic>
 struct BasePointerGetter {
diff --git a/src/core/lib/transport/connectivity_state.h b/src/core/lib/transport/connectivity_state.h
index 3895cc5c836..8126ebc730d 100644
--- a/src/core/lib/transport/connectivity_state.h
+++ b/src/core/lib/transport/connectivity_state.h
@@ -116,7 +116,7 @@ class ConnectivityStateTracker {
  private:
   const char* name_;
   Atomic<grpc_connectivity_state> state_;
-  // TODO(roth): Once we can use C++-14 heterogenous lookups, this can
+  // TODO(roth): Once we can use C++-14 heterogeneous lookups, this can
   // be a set instead of a map.
   Map<ConnectivityStateWatcherInterface*,
       OrphanablePtr<ConnectivityStateWatcherInterface>>
diff --git a/src/csharp/Grpc.Core/Calls.cs b/src/csharp/Grpc.Core/Calls.cs
index 1843c4c109a..05b9bedfccf 100644
--- a/src/csharp/Grpc.Core/Calls.cs
+++ b/src/csharp/Grpc.Core/Calls.cs
@@ -33,7 +33,7 @@ namespace Grpc.Core
         /// Invokes a simple remote call in a blocking fashion.
         /// </summary>
         /// <returns>The response.</returns>
-        /// <param name="call">The call defintion.</param>
+        /// <param name="call">The call definition.</param>
         /// <param name="req">Request message.</param>
         /// <typeparam name="TRequest">Type of request message.</typeparam>
         /// <typeparam name="TResponse">The of response message.</typeparam>
@@ -49,7 +49,7 @@ namespace Grpc.Core
         /// Invokes a simple remote call asynchronously.
         /// </summary>
         /// <returns>An awaitable call object providing access to the response.</returns>
-        /// <param name="call">The call defintion.</param>
+        /// <param name="call">The call definition.</param>
         /// <param name="req">Request message.</param>
         /// <typeparam name="TRequest">Type of request message.</typeparam>
         /// <typeparam name="TResponse">The of response message.</typeparam>
@@ -67,7 +67,7 @@ namespace Grpc.Core
         /// In server streaming scenario, client sends on request and server responds with a stream of responses.
         /// </summary>
         /// <returns>A call object providing access to the asynchronous response stream.</returns>
-        /// <param name="call">The call defintion.</param>
+        /// <param name="call">The call definition.</param>
         /// <param name="req">Request message.</param>
         /// <typeparam name="TRequest">Type of request message.</typeparam>
         /// <typeparam name="TResponse">The of response messages.</typeparam>
@@ -85,7 +85,7 @@ namespace Grpc.Core
         /// Invokes a client streaming call asynchronously.
         /// In client streaming scenario, client sends a stream of requests and server responds with a single response.
         /// </summary>
-        /// <param name="call">The call defintion.</param>
+        /// <param name="call">The call definition.</param>
         /// <returns>An awaitable call object providing access to the response.</returns>
         /// <typeparam name="TRequest">Type of request messages.</typeparam>
         /// <typeparam name="TResponse">The of response message.</typeparam>
@@ -107,7 +107,7 @@ namespace Grpc.Core
         /// <returns>A call object providing access to the asynchronous request and response streams.</returns>
         /// <param name="call">The call definition.</param>
         /// <typeparam name="TRequest">Type of request messages.</typeparam>
-        /// <typeparam name="TResponse">Type of reponse messages.</typeparam>
+        /// <typeparam name="TResponse">Type of responsemessages.</typeparam>
         public static AsyncDuplexStreamingCall<TRequest, TResponse> AsyncDuplexStreamingCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call)
             where TRequest : class
             where TResponse : class
diff --git a/src/csharp/Grpc.IntegrationTesting/Messages.cs b/src/csharp/Grpc.IntegrationTesting/Messages.cs
index dab90d8ae46..d4d3a6a2b34 100644
--- a/src/csharp/Grpc.IntegrationTesting/Messages.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Messages.cs
@@ -97,7 +97,7 @@ namespace Grpc.Testing {
   /// the server via the "gRPCLB fallback" path, and "backend" if it detects
   /// that the RPC reached the server via "gRPCLB backend" path (i.e. if it got
   /// the address of this server from the gRPCLB server BalanceLoad RPC). Exactly
-  /// how this detection is done is context and server dependant.
+  /// how this detection is done is context and server dependent.
   /// </summary>
   public enum GrpclbRouteType {
     /// <summary>
diff --git a/src/csharp/Grpc.IntegrationTesting/Metrics.cs b/src/csharp/Grpc.IntegrationTesting/Metrics.cs
index b5d8b87a680..78407416fd5 100644
--- a/src/csharp/Grpc.IntegrationTesting/Metrics.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Metrics.cs
@@ -46,7 +46,7 @@ namespace Grpc.Testing {
   }
   #region Messages
   /// <summary>
-  /// Reponse message containing the gauge name and value
+  /// Response message containing the gauge name and value
   /// </summary>
   public sealed partial class GaugeResponse : pb::IMessage<GaugeResponse> {
     private static readonly pb::MessageParser<GaugeResponse> _parser = new pb::MessageParser<GaugeResponse>(() => new GaugeResponse());
diff --git a/src/objective-c/RxLibrary/GRXWriter.h b/src/objective-c/RxLibrary/GRXWriter.h
index df4c80c28dd..d0d0f4e0055 100644
--- a/src/objective-c/RxLibrary/GRXWriter.h
+++ b/src/objective-c/RxLibrary/GRXWriter.h
@@ -44,7 +44,7 @@ typedef NS_ENUM(NSInteger, GRXWriterState) {
   /**
    * The writer has released its writeable and won't interact with it anymore.
    *
-   * One seldomly wants to set a writer's state to this value, as its writeable isn't notified with
+   * One seldom wants to set a writer's state to this value, as its writeable isn't notified with
    * a writesFinishedWithError: message. Instead, sending finishWithError: to the writer will make
    * it notify the writeable and then transition to this state.
    */
diff --git a/src/objective-c/tests/TestBase.h b/src/objective-c/tests/TestBase.h
index 621e145d3d6..d6a6a56c69f 100644
--- a/src/objective-c/tests/TestBase.h
+++ b/src/objective-c/tests/TestBase.h
@@ -38,7 +38,7 @@
 + (NSString *)host;
 
 /**
- * Bytes of overhead of test proto responses due to encoding. This is used to excercise the behavior
+ * Bytes of overhead of test proto responses due to encoding. This is used to exercise the behavior
  * when responses are just above or below the max response size. For some reason, the local and
  * remote servers enconde responses with different overhead (?), so this is defined per-subclass.
  */
diff --git a/src/php/ext/grpc/php_grpc.c b/src/php/ext/grpc/php_grpc.c
index 6d66e790459..384f720c744 100644
--- a/src/php/ext/grpc/php_grpc.c
+++ b/src/php/ext/grpc/php_grpc.c
@@ -173,7 +173,7 @@ void prefork() {
 void postfork_child() {
   TSRMLS_FETCH();
 
-  // loop through persistant list and destroy all underlying grpc_channel objs
+  // loop through persistent list and destroy all underlying grpc_channel objs
   destroy_grpc_channels();
 
   // clear completion queue
diff --git a/src/php/tests/qps/generated_code/Grpc/Testing/GaugeResponse.php b/src/php/tests/qps/generated_code/Grpc/Testing/GaugeResponse.php
index da658ba1985..3969a708a06 100644
--- a/src/php/tests/qps/generated_code/Grpc/Testing/GaugeResponse.php
+++ b/src/php/tests/qps/generated_code/Grpc/Testing/GaugeResponse.php
@@ -9,7 +9,7 @@ use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * Reponse message containing the gauge name and value
+ * Response message containing the gauge name and value
  *
  * Generated from protobuf message <code>grpc.testing.GaugeResponse</code>
  */
diff --git a/src/proto/grpc/testing/messages.proto b/src/proto/grpc/testing/messages.proto
index 4fed83fb389..cda7753c7aa 100644
--- a/src/proto/grpc/testing/messages.proto
+++ b/src/proto/grpc/testing/messages.proto
@@ -53,7 +53,7 @@ message EchoStatus {
 // the server via the "gRPCLB fallback" path, and "backend" if it detects
 // that the RPC reached the server via "gRPCLB backend" path (i.e. if it got
 // the address of this server from the gRPCLB server BalanceLoad RPC). Exactly
-// how this detection is done is context and server dependant.
+// how this detection is done is context and server dependent.
 enum GrpclbRouteType {
   // Server didn't detect the route that a client took to reach it.
   GRPCLB_ROUTE_TYPE_UNKNOWN = 0;
diff --git a/src/proto/grpc/testing/metrics.proto b/src/proto/grpc/testing/metrics.proto
index dd8abdaad5b..69504006431 100644
--- a/src/proto/grpc/testing/metrics.proto
+++ b/src/proto/grpc/testing/metrics.proto
@@ -22,7 +22,7 @@ syntax = "proto3";
 
 package grpc.testing;
 
-// Reponse message containing the gauge name and value
+// Response message containing the gauge name and value
 message GaugeResponse {
   string name = 1;
   oneof value {