diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 3fdfe7fc11..5258549784 100755
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -267,7 +267,14 @@ def _RunPythonTests(input_api, output_api):
 def _CommonChecks(input_api, output_api):
   """Checks common to both upload and commit."""
   results = []
-  results.extend(_CheckApprovedFilesLintClean(input_api, output_api))
+  # Filter out files that are in objc or ios dirs from being cpplint-ed since
+  # they do not follow C++ lint rules.
+  black_list = input_api.DEFAULT_BLACK_LIST + (
+    r".*\bobjc[\\\/].*",
+  )
+  source_file_filter = lambda x: input_api.FilterSourceFile(x, None, black_list)
+  results.extend(_CheckApprovedFilesLintClean(
+      input_api, output_api, source_file_filter))
   results.extend(input_api.canned_checks.RunPylint(input_api, output_api,
       black_list=(r'^.*gviz_api\.py$',
                   r'^.*gaeunit\.py$',
diff --git a/webrtc/base/BUILD.gn b/webrtc/base/BUILD.gn
index 6d51003fed..4f42695854 100644
--- a/webrtc/base/BUILD.gn
+++ b/webrtc/base/BUILD.gn
@@ -605,3 +605,19 @@ static_library("rtc_base") {
     defines += [ "timezone=_timezone" ]
   }
 }
+
+if (is_ios) {
+  source_set("rtc_base_objc") {
+    deps = [
+      ":rtc_base",
+    ]
+    cflags = [ "-fobjc-arc" ]
+    configs += [ "..:common_config" ]
+    public_configs = [ "..:common_inherited_config" ]
+
+    sources = [
+      "objc/RTCLogging.h",
+      "objc/RTCLogging.mm",
+    ]
+  }
+}
diff --git a/webrtc/base/base.gyp b/webrtc/base/base.gyp
index 44aff84c43..23a3c26c77 100644
--- a/webrtc/base/base.gyp
+++ b/webrtc/base/base.gyp
@@ -22,6 +22,27 @@
         }],
       ],
     }],
+    # TODO(tkchin): Mac support. There are a bunch of problems right now because
+    # of some settings pulled down from Chromium.
+    ['OS=="ios"', {
+      'targets': [
+        {
+          'target_name': 'rtc_base_objc',
+          'type': 'static_library',
+          'dependencies': [
+            'rtc_base',
+          ],
+          'sources': [
+            'objc/RTCLogging.h',
+            'objc/RTCLogging.mm'
+          ],
+          'xcode_settings': {
+            'CLANG_ENABLE_OBJC_ARC': 'YES',
+            'CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS': 'YES',
+          },
+        }
+      ],
+    }], # OS=="ios"
   ],
   'targets': [
     {
diff --git a/webrtc/base/objc/OWNERS b/webrtc/base/objc/OWNERS
new file mode 100644
index 0000000000..cd06158b7f
--- /dev/null
+++ b/webrtc/base/objc/OWNERS
@@ -0,0 +1 @@
+tkchin@webrtc.org
diff --git a/webrtc/base/objc/RTCLogging.h b/webrtc/base/objc/RTCLogging.h
new file mode 100644
index 0000000000..19fade5cfc
--- /dev/null
+++ b/webrtc/base/objc/RTCLogging.h
@@ -0,0 +1,75 @@
+/*
+ *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import <Foundation/Foundation.h>
+
+// Subset of rtc::LoggingSeverity.
+typedef NS_ENUM(NSInteger, RTCLoggingSeverity) {
+  kRTCLoggingSeverityVerbose,
+  kRTCLoggingSeverityInfo,
+  kRTCLoggingSeverityWarning,
+  kRTCLoggingSeverityError,
+};
+
+#if defined(__cplusplus)
+extern "C" void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string);
+extern "C" void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity);
+extern "C" NSString* RTCFileName(const char* filePath);
+#else
+
+// Wrapper for C++ LOG(sev) macros.
+// Logs the log string to the webrtc logstream for the given severity.
+extern void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string);
+
+// Wrapper for rtc::LogMessage::LogToDebug.
+// Sets the minimum severity to be logged to console.
+extern void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity);
+
+// Returns the filename with the path prefix removed.
+extern NSString* RTCFileName(const char* filePath);
+
+#endif
+
+// Some convenience macros.
+
+#define RTCLogString(format, ...)                    \
+  [NSString stringWithFormat:@"(%@:%d %s): " format, \
+      RTCFileName(__FILE__),                         \
+      __LINE__,                                      \
+      __FUNCTION__,                                  \
+      ##__VA_ARGS__]
+
+#define RTCLogFormat(severity, format, ...)                     \
+  do {                                                          \
+    NSString* log_string = RTCLogString(format, ##__VA_ARGS__); \
+    RTCLogEx(severity, log_string);                             \
+  } while (false)
+
+#define RTCLogVerbose(format, ...)                                \
+  RTCLogFormat(kRTCLoggingSeverityVerbose, format, ##__VA_ARGS__) \
+
+#define RTCLogInfo(format, ...)                                   \
+  RTCLogFormat(kRTCLoggingSeverityInfo, format, ##__VA_ARGS__)    \
+
+#define RTCLogWarning(format, ...)                                \
+  RTCLogFormat(kRTCLoggingSeverityWarning, format, ##__VA_ARGS__) \
+
+#define RTCLogError(format, ...)                                  \
+  RTCLogFormat(kRTCLoggingSeverityError, format, ##__VA_ARGS__)   \
+
+#if !defined(NDEBUG)
+#define RTCLogDebug(format, ...) RTCLogInfo(format, ##__VA_ARGS__)
+#else
+#define RTCLogDebug(format, ...) \
+  do {                           \
+  } while (false)
+#endif
+
+#define RTCLog(format, ...) RTCLogInfo(format, ##__VA_ARGS__)
diff --git a/webrtc/base/objc/RTCLogging.mm b/webrtc/base/objc/RTCLogging.mm
new file mode 100644
index 0000000000..e9afe725d1
--- /dev/null
+++ b/webrtc/base/objc/RTCLogging.mm
@@ -0,0 +1,47 @@
+/*
+ *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import "RTCLogging.h"
+
+#include "webrtc/base/logging.h"
+
+rtc::LoggingSeverity RTCGetNativeLoggingSeverity(RTCLoggingSeverity severity) {
+  switch (severity) {
+    case kRTCLoggingSeverityVerbose:
+      return rtc::LS_VERBOSE;
+    case kRTCLoggingSeverityInfo:
+      return rtc::LS_INFO;
+    case kRTCLoggingSeverityWarning:
+      return rtc::LS_WARNING;
+    case kRTCLoggingSeverityError:
+      return rtc::LS_ERROR;
+  }
+}
+
+void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string) {
+  if (log_string.length) {
+    const char* utf8_string = log_string.UTF8String;
+    LOG_V(RTCGetNativeLoggingSeverity(severity)) << utf8_string;
+  }
+}
+
+void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity) {
+  rtc::LogMessage::LogToDebug(RTCGetNativeLoggingSeverity(severity));
+}
+
+NSString* RTCFileName(const char* file_path) {
+  NSString* ns_file_path =
+      [[NSString alloc] initWithBytesNoCopy:const_cast<char*>(file_path)
+                                     length:strlen(file_path)
+                                   encoding:NSUTF8StringEncoding
+                               freeWhenDone:NO];
+  return ns_file_path.lastPathComponent;
+}
+