diff --git a/clang/include/clang/Basic/LangOptions.h b/clang/include/clang/Basic/LangOptions.h
--- a/clang/include/clang/Basic/LangOptions.h
+++ b/clang/include/clang/Basic/LangOptions.h
@@ -119,6 +119,8 @@
     MSVC2017_7 = 1914,
   };
 
+  enum class SYCLVersionList { SYCL_2015, Undefined };
+
   /// Clang versions with different platform ABI conformance.
   enum class ClangABI {
     /// Attempt to be ABI-compatible with code generated by Clang 3.8.x
diff --git a/clang/include/clang/Basic/LangOptions.def b/clang/include/clang/Basic/LangOptions.def
--- a/clang/include/clang/Basic/LangOptions.def
+++ b/clang/include/clang/Basic/LangOptions.def
@@ -230,6 +230,7 @@
 LANGOPT(GPUMaxThreadsPerBlock, 32, 256, "default max threads per block for kernel launch bounds for HIP")
 
 LANGOPT(SYCLIsDevice      , 1, 0, "Generate code for SYCL device")
+ENUM_LANGOPT(SYCLVersion, SYCLVersionList, 4, SYCLVersionList::Undefined, "Version of the SYCL standard used")
 
 LANGOPT(HIPUseNewLaunchAPI, 1, 0, "Use new kernel launching API for HIP")
 
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -3415,6 +3415,8 @@
   HelpText<"Enable SYCL kernels compilation for device">;
 def fno_sycl : Flag<["-"], "fno-sycl">, Group<sycl_Group>,
   HelpText<"Disable SYCL kernels compilation for device">;
+def sycl_std_EQ : Joined<["-"], "sycl-std=">, Group<sycl_Group>, Flags<[CC1Option]>,
+  HelpText<"SYCL language standard to compile for.">, Values<"2015, 121, 1.2.1, sycl-1.2.1">;
 
 include "CC1Options.td"
 
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -4023,9 +4023,17 @@
     CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
   }
 
-  if (Args.hasFlag(options::OPT_fsycl, options::OPT_fno_sycl, false))
+  bool IsSYCL = Args.hasFlag(options::OPT_fsycl, options::OPT_fno_sycl, false);
+  if (IsSYCL)
     CmdArgs.push_back("-fsycl-is-device");
 
+  if (Arg *A = Args.getLastArg(options::OPT_sycl_std_EQ)) {
+    A->render(Args, CmdArgs);
+  } else if (IsSYCL) {
+    // Ensure the default version in SYCL mode is 1.2.1 (aka 2015)
+    CmdArgs.push_back("-sycl-std=2015");
+  }
+
   if (IsOpenMPDevice) {
     // We have to pass the triple of the host if compiling for an OpenMP device.
     std::string NormalizedTriple =
@@ -5293,6 +5301,9 @@
                    options::OPT_fno_hip_new_launch_api, false))
     CmdArgs.push_back("-fhip-new-launch-api");
 
+  // Forward -sycl-std option to -cc1
+  Args.AddLastArg(CmdArgs, options::OPT_sycl_std_EQ);
+
   if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) {
     CmdArgs.push_back(
         Args.MakeArgString(Twine("-fcf-protection=") + A->getValue()));
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2544,6 +2544,22 @@
       LangStd = OpenCLLangStd;
   }
 
+  // -sycl-std applies to any SYCL source, not only those containing kernels,
+  // but also those using the SYCL API
+  if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) {
+    Opts.setSYCLVersion(
+        llvm::StringSwitch<LangOptions::SYCLVersionList>(A->getValue())
+            .Cases("2015", "1.2.1", "121", "sycl-1.2.1",
+                   LangOptions::SYCLVersionList::SYCL_2015)
+            .Default(LangOptions::SYCLVersionList::Undefined));
+
+    if (Opts.getSYCLVersion() == LangOptions::SYCLVersionList::Undefined) {
+      // User has passed an invalid value to the flag, this is an error
+      Diags.Report(diag::err_drv_invalid_value)
+          << A->getAsString(Args) << A->getValue();
+    }
+  }
+
   Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
   Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
 
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -450,6 +450,16 @@
     if (LangOpts.FastRelaxedMath)
       Builder.defineMacro("__FAST_RELAXED_MATH__");
   }
+
+  // SYCL Version is set to a value when building SYCL applications
+  switch (LangOpts.getSYCLVersion()) {
+  case LangOptions::SYCLVersionList::SYCL_2015:
+    Builder.defineMacro("CL_SYCL_LANGUAGE_VERSION", "121");
+    break;
+  case LangOptions::SYCLVersionList::Undefined:
+    break;
+  }
+
   // Not "standard" per se, but available even with the -undef flag.
   if (LangOpts.AsmPreprocessor)
     Builder.defineMacro("__ASSEMBLER__");
diff --git a/clang/test/Driver/sycl.c b/clang/test/Driver/sycl.c
--- a/clang/test/Driver/sycl.c
+++ b/clang/test/Driver/sycl.c
@@ -1,5 +1,9 @@
 // RUN: %clang -### -fsycl -c %s 2>&1 | FileCheck %s --check-prefix=ENABLED
 // RUN: %clang -### -fsycl %s 2>&1 | FileCheck %s --check-prefix=ENABLED
+// RUN: %clang -### -fsycl -sycl-std=1.2.1 %s 2>&1 | FileCheck %s --check-prefix=ENABLED
+// RUN: %clang -### -fsycl -sycl-std=121 %s 2>&1 | FileCheck %s --check-prefix=ENABLED
+// RUN: %clang -### -fsycl -sycl-std=2015 %s 2>&1 | FileCheck %s --check-prefix=ENABLED
+// RUN: %clang -### -fsycl -sycl-std=sycl-1.2.1 %s 2>&1 | FileCheck %s --check-prefix=ENABLED
 // RUN: %clang -### -fno-sycl -fsycl %s 2>&1 | FileCheck %s --check-prefix=ENABLED
 // RUN: %clangxx -### -fsycl %s 2>&1 | FileCheck %s --check-prefix=ENABLED
 // RUN: %clangxx -### -fno-sycl %s 2>&1 | FileCheck %s --check-prefix=DISABLED
@@ -7,4 +11,6 @@
 // RUN: %clangxx -### %s 2>&1 | FileCheck %s --check-prefix=DISABLED
 
 // ENABLED: "-cc1"{{.*}} "-fsycl-is-device"
+// ENABLED-SAME: "-sycl-std={{[-.sycl0-9]+}}"
 // DISABLED-NOT: "-fsycl-is-device"
+// DISABLED-NOT: "-sycl-std="
diff --git a/clang/test/Preprocessor/sycl-macro.cpp b/clang/test/Preprocessor/sycl-macro.cpp
--- a/clang/test/Preprocessor/sycl-macro.cpp
+++ b/clang/test/Preprocessor/sycl-macro.cpp
@@ -1,5 +1,9 @@
 // RUN: %clang_cc1 %s -E -dM | FileCheck %s
-// RUN: %clang_cc1 %s -fsycl-is-device -E -dM | FileCheck --check-prefix=CHECK-SYCL %s
+// RUN: %clang_cc1 %s -sycl-std=2015 -E -dM | FileCheck --check-prefix=CHECK-SYCL-STD %s
+// RUN: %clang_cc1 %s -sycl-std=1.2.1 -E -dM | FileCheck --check-prefix=CHECK-SYCL-STD %s
+// RUN: %clang_cc1 %s -fsycl-is-device -E -dM | FileCheck --check-prefixes=CHECK-SYCL %s
 
 // CHECK-NOT:#define __SYCL_DEVICE_ONLY__ 1
+// CHECK-NOT:#define CL_SYCL_LANGUAGE_VERSION 121
+// CHECK-SYCL-STD:#define CL_SYCL_LANGUAGE_VERSION 121
 // CHECK-SYCL:#define __SYCL_DEVICE_ONLY__ 1