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
@@ -237,7 +237,6 @@
 LANGOPT(OpenMPCUDABlocksPerSM  , 32, 0, "Number of blocks per SM for CUDA devices.")
 LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records in the intermediate reduction buffer used for the teams reductions.")
 LANGOPT(OpenMPOptimisticCollapse  , 1, 0, "Use at most 32 bits to represent the collapsed loop nest counter.")
-LANGOPT(OpenMPCUDATargetParallel, 1, 0, "Support parallel execution of target region on Cuda-based devices.")
 LANGOPT(RenderScript      , 1, 0, "RenderScript")
 
 LANGOPT(CUDAIsDevice      , 1, 0, "compiling for CUDA device")
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
@@ -2340,12 +2340,6 @@
 defm openmp_optimistic_collapse : BoolFOption<"openmp-optimistic-collapse",
   LangOpts<"OpenMPOptimisticCollapse">, DefaultFalse,
   PosFlag<SetTrue, [CC1Option]>, NegFlag<SetFalse>, BothFlags<[NoArgumentUnused, HelpHidden]>>;
-def fopenmp_cuda_parallel_target_regions : Flag<["-"], "fopenmp-cuda-parallel-target-regions">, Group<f_Group>,
-  Flags<[CC1Option, NoArgumentUnused, HelpHidden]>,
-  HelpText<"Support parallel execution of target regions on Cuda-based devices.">;
-def fno_openmp_cuda_parallel_target_regions : Flag<["-"], "fno-openmp-cuda-parallel-target-regions">, Group<f_Group>,
-  Flags<[NoArgumentUnused, HelpHidden]>,
-  HelpText<"Support only serial execution of target regions on Cuda-based devices.">;
 def static_openmp: Flag<["-"], "static-openmp">,
   HelpText<"Use the static host OpenMP runtime while linking.">;
 def fno_optimize_sibling_calls : Flag<["-"], "fno-optimize-sibling-calls">, Group<f_Group>;
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
@@ -5673,13 +5673,6 @@
                        options::OPT_fno_openmp_cuda_mode, /*Default=*/false))
         CmdArgs.push_back("-fopenmp-cuda-mode");
 
-      // When in OpenMP offloading mode with NVPTX target, forward
-      // cuda-parallel-target-regions flag
-      if (Args.hasFlag(options::OPT_fopenmp_cuda_parallel_target_regions,
-                       options::OPT_fno_openmp_cuda_parallel_target_regions,
-                       /*Default=*/true))
-        CmdArgs.push_back("-fopenmp-cuda-parallel-target-regions");
-
       // When in OpenMP offloading mode with NVPTX target, check if full runtime
       // is required.
       if (Args.hasFlag(options::OPT_fopenmp_cuda_force_full_runtime,
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
@@ -3475,9 +3475,6 @@
   if (Opts.OpenMPCUDAMode)
     GenerateArg(Args, OPT_fopenmp_cuda_mode, SA);
 
-  if (Opts.OpenMPCUDATargetParallel)
-    GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA);
-
   if (Opts.OpenMPCUDAForceFullRuntime)
     GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA);
 
@@ -3905,12 +3902,6 @@
   Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
                         Args.hasArg(options::OPT_fopenmp_cuda_mode);
 
-  // Set CUDA support for parallel execution of target regions for OpenMP target
-  // NVPTX/AMDGCN if specified in options.
-  Opts.OpenMPCUDATargetParallel =
-      Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
-      Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions);
-
   // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
   Opts.OpenMPCUDAForceFullRuntime =
       Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&