diff --git a/include/boost/predef/os/ios.h b/include/boost/predef/os/ios.h
new file mode 100644
index 0000000000000000000000000000000000000000..f853815a6d1783be7ede75c5db6d7a8a434079e2
--- /dev/null
+++ b/include/boost/predef/os/ios.h
@@ -0,0 +1,51 @@
+/*
+Copyright Franz Detro 2014
+Copyright Rene Rivera 2015
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#ifndef BOOST_PREDEF_OS_IOS_H
+#define BOOST_PREDEF_OS_IOS_H
+
+#include <boost/predef/version_number.h>
+#include <boost/predef/make.h>
+
+/*`
+[heading `BOOST_OS_IOS`]
+
+[@http://en.wikipedia.org/wiki/iOS iOS] operating system.
+
+[table
+    [[__predef_symbol__] [__predef_version__]]
+
+    [[`__APPLE__`] [__predef_detection__]]
+    [[`__MACH__`] [__predef_detection__]]
+    [[`__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__`] [__predef_detection__]]
+
+    [[`__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__`] [__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__*1000]]
+    ]
+ */
+
+#define BOOST_OS_IOS BOOST_VERSION_NUMBER_NOT_AVAILABLE
+
+#if !defined(BOOST_PREDEF_DETAIL_OS_DETECTED) && ( \
+    defined(__APPLE__) && defined(__MACH__) && \
+    defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) \
+    )
+#   undef BOOST_OS_IOS
+#   define BOOST_OS_IOS (__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__*1000)
+#endif
+
+#if BOOST_OS_IOS
+#   define BOOST_OS_IOS_AVAILABLE
+#   include <boost/predef/detail/os_detected.h>
+#endif
+
+#define BOOST_OS_IOS_NAME "iOS"
+
+#endif
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_OS_IOS,BOOST_OS_IOS_NAME)