diff --git a/Directory.Build.props b/Directory.Build.props
index ad711a667cb0ca..8f3d4cb1be1735 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -43,7 +43,7 @@
     <iOSVersionMin>13.0</iOSVersionMin>
     <tvOSVersionMin>13.0</tvOSVersionMin>
     <macOSVersionMin>12.0</macOSVersionMin>
-    <MacCatalystVersionMin>15.2</MacCatalystVersionMin>
+    <MacCatalystVersionMin>15.0</MacCatalystVersionMin>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/eng/native/build-commons.sh b/eng/native/build-commons.sh
index 5f4fd788374096..bb6abc104fb348 100755
--- a/eng/native/build-commons.sh
+++ b/eng/native/build-commons.sh
@@ -93,7 +93,7 @@ build_native()
 
         # set default macCatalyst deployment target
         # keep in sync with SetOSTargetMinVersions in the root Directory.Build.props
-        cmakeArgs="-DCMAKE_SYSTEM_NAME=Darwin -DCMAKE_OSX_SYSROOT=macosx -DCMAKE_SYSTEM_VARIANT=maccatalyst -DCMAKE_OSX_DEPLOYMENT_TARGET=15.2 $cmakeArgs"
+        cmakeArgs="-DCMAKE_SYSTEM_NAME=Darwin -DCMAKE_OSX_SYSROOT=macosx -DCMAKE_SYSTEM_VARIANT=maccatalyst -DCMAKE_OSX_DEPLOYMENT_TARGET=15.0 $cmakeArgs"
     fi
 
     if [[ "$targetOS" == android || "$targetOS" == linux-bionic ]]; then
diff --git a/eng/native/configurecompiler.cmake b/eng/native/configurecompiler.cmake
index 504631762433bb..9caf3a14828599 100644
--- a/eng/native/configurecompiler.cmake
+++ b/eng/native/configurecompiler.cmake
@@ -705,10 +705,10 @@ if (CLR_CMAKE_HOST_UNIX OR CLR_CMAKE_HOST_WASI)
     endif()
     add_link_options(${DISABLE_OVERRIDING_MIN_VERSION_ERROR})
     if(CLR_CMAKE_HOST_ARCH_ARM64)
-      set(CLR_CMAKE_MACCATALYST_COMPILER_TARGET "arm64-apple-ios15.2-macabi")
+      set(CLR_CMAKE_MACCATALYST_COMPILER_TARGET "arm64-apple-ios15.0-macabi")
       add_link_options(-target ${CLR_CMAKE_MACCATALYST_COMPILER_TARGET})
     elseif(CLR_CMAKE_HOST_ARCH_AMD64)
-      set(CLR_CMAKE_MACCATALYST_COMPILER_TARGET "x86_64-apple-ios15.2-macabi")
+      set(CLR_CMAKE_MACCATALYST_COMPILER_TARGET "x86_64-apple-ios15.0-macabi")
       add_link_options(-target ${CLR_CMAKE_MACCATALYST_COMPILER_TARGET})
     else()
       clr_unknown_arch()
diff --git a/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets b/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets
index a4fd6ffe5f4ee1..1c7fce767d73bd 100644
--- a/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets
+++ b/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets
@@ -78,7 +78,7 @@ The .NET Foundation licenses this file to you under the MIT license.
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(_IsiOSLikePlatform)' == 'true'">
-      <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and '$(_targetOS)' == 'maccatalyst'">15.2</AppleMinOSVersion>
+      <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and '$(_targetOS)' == 'maccatalyst'">15.0</AppleMinOSVersion>
       <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and ($(_targetOS.StartsWith('ios')) or $(_targetOS.StartsWith('tvos')))">13.0</AppleMinOSVersion>
 
       <_AppleSdkName Condition="'$(_targetOS)' == 'ios'">iphoneos</_AppleSdkName>
diff --git a/src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs b/src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs
index 659c48acda2000..f59989a8445269 100644
--- a/src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs
+++ b/src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs
@@ -265,7 +265,7 @@ private protected override void EmitObjectFile(Stream outputFileStream)
 
                 case TargetOS.MacCatalyst:
                     buildVersion.Platform = PLATFORM_MACCATALYST;
-                    buildVersion.MinimumPlatformVersion = 0x0F_02_00; // 15.2.0
+                    buildVersion.MinimumPlatformVersion = 0x0F_00_00; // 15.0.0
                     break;
 
                 case TargetOS.iOS:
diff --git a/src/mono/mono/offsets/offsets-tool.py b/src/mono/mono/offsets/offsets-tool.py
index aec4a637dd614b..05fe89fc6297b0 100644
--- a/src/mono/mono/offsets/offsets-tool.py
+++ b/src/mono/mono/offsets/offsets-tool.py
@@ -186,13 +186,13 @@ def require_emscipten_path (args):
 		elif "x86_64-apple-maccatalyst" == args.abi:
 			require_sysroot (args)
 			self.target = Target ("TARGET_AMD64", "TARGET_MACCAT", IOS_DEFINES)
-			self.target_args += ["-target", "x86_64-apple-ios15.2-macabi"]
+			self.target_args += ["-target", "x86_64-apple-ios15.0-macabi"]
 			self.target_args += ["-isysroot", args.sysroot]
 
 		elif "aarch64-apple-maccatalyst" == args.abi:
 			require_sysroot (args)
 			self.target = Target ("TARGET_ARM64", "TARGET_MACCAT", IOS_DEFINES)
-			self.target_args += ["-target", "arm64-apple-ios15.2-macabi"]
+			self.target_args += ["-target", "arm64-apple-ios15.0-macabi"]
 			self.target_args += ["-isysroot", args.sysroot]
 
 		# watchOS
diff --git a/src/mono/msbuild/apple/build/AppleBuild.targets b/src/mono/msbuild/apple/build/AppleBuild.targets
index 7647ce5ffcf520..1c3734f3d82655 100644
--- a/src/mono/msbuild/apple/build/AppleBuild.targets
+++ b/src/mono/msbuild/apple/build/AppleBuild.targets
@@ -175,9 +175,9 @@
 
     <ItemGroup>
       <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' != 'maccatalyst'" Include="mtriple=arm64-ios" />
-      <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=arm64-apple-ios15.2-macabi" />
+      <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=arm64-apple-ios15.0-macabi" />
       <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' != 'maccatalyst'" Include="mtriple=x86_64-ios" />
-      <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=x86_64-apple-ios15.2-macabi" />
+      <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=x86_64-apple-ios15.0-macabi" />
       <MonoAOTCompilerDefaultAotArguments Include="static" />
       <MonoAOTCompilerDefaultAotArguments Include="dwarfdebug" />
       <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64'" Include="mattr=+crc" /> <!-- enable System.Runtime.Intrinsics.Arm (Crc32 and ArmBase for now) -->
diff --git a/src/mono/msbuild/common/MonoAOTCompiler.props b/src/mono/msbuild/common/MonoAOTCompiler.props
index 8b162a97060c29..d717c8e2df3a44 100644
--- a/src/mono/msbuild/common/MonoAOTCompiler.props
+++ b/src/mono/msbuild/common/MonoAOTCompiler.props
@@ -1,9 +1,9 @@
 <Project>
   <ItemGroup Condition="'$(TargetOS)' == 'ios' or '$(TargetOS)' == 'iossimulator' or '$(TargetOS)' == 'tvos' or '$(TargetOS)' == 'tvossimulator' or '$(TargetOS)' == 'maccatalyst'">
     <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' != 'maccatalyst'" Include="mtriple=arm64-ios" />
-    <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=arm64-apple-ios15.2-macabi" />
+    <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=arm64-apple-ios15.0-macabi" />
     <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' != 'maccatalyst'" Include="mtriple=x86_64-ios" />
-    <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=x86_64-apple-ios15.2-macabi" />
+    <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'x64' and '$(TargetOS)' == 'maccatalyst'" Include="mtriple=x86_64-apple-ios15.0-macabi" />
     <MonoAOTCompilerDefaultAotArguments Condition="'$(TargetArchitecture)' == 'arm64'" Include="mattr=+crc" /> <!-- enable System.Runtime.Intrinsics.Arm (Crc32 and ArmBase for now) -->
     <!--<MonoAOTCompilerDefaultAotArguments Include="direct-pinvoke" />--> <!-- TODO: enable direct-pinvokes (to get rid of -force_loads)-->
   </ItemGroup>
diff --git a/src/tasks/AppleAppBuilder/Xcode.cs b/src/tasks/AppleAppBuilder/Xcode.cs
index e644aefc6ed498..ad849e3c538a8a 100644
--- a/src/tasks/AppleAppBuilder/Xcode.cs
+++ b/src/tasks/AppleAppBuilder/Xcode.cs
@@ -690,7 +690,7 @@ public string BuildAppBundle(
                         .Append(" -UseModernBuildSystem=YES")
                         .Append(" -archivePath \"").Append(Path.GetDirectoryName(xcodePrjPath)).Append('"')
                         .Append(" -derivedDataPath \"").Append(Path.GetDirectoryName(xcodePrjPath)).Append('"')
-                        .Append(" IPHONEOS_DEPLOYMENT_TARGET=15.2");
+                        .Append(" IPHONEOS_DEPLOYMENT_TARGET=15.0");
                     break;
             }
         }
@@ -715,7 +715,7 @@ public string BuildAppBundle(
                         .Append(" -UseModernBuildSystem=YES")
                         .Append(" -archivePath \"").Append(Path.GetDirectoryName(xcodePrjPath)).Append('"')
                         .Append(" -derivedDataPath \"").Append(Path.GetDirectoryName(xcodePrjPath)).Append('"')
-                        .Append(" IPHONEOS_DEPLOYMENT_TARGET=15.2");
+                        .Append(" IPHONEOS_DEPLOYMENT_TARGET=15.0");
                     break;
             }
         }
diff --git a/src/tasks/Crossgen2Tasks/Microsoft.NET.CrossGen.targets b/src/tasks/Crossgen2Tasks/Microsoft.NET.CrossGen.targets
index 83b3dacde69272..4a8bd9efa6dbed 100644
--- a/src/tasks/Crossgen2Tasks/Microsoft.NET.CrossGen.targets
+++ b/src/tasks/Crossgen2Tasks/Microsoft.NET.CrossGen.targets
@@ -557,7 +557,7 @@ Copyright (c) .NET Foundation. All rights reserved.
 
     <PropertyGroup>
       <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and '$(_AppleTargetOS)' == 'osx'">12.0</AppleMinOSVersion>
-      <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and '$(_AppleTargetOS)' == 'maccatalyst'">15.2</AppleMinOSVersion>
+      <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and '$(_AppleTargetOS)' == 'maccatalyst'">15.0</AppleMinOSVersion>
       <AppleMinOSVersion Condition="'$(AppleMinOSVersion)' == '' and ($(_AppleTargetOS.StartsWith('ios')) or $(_AppleTargetOS.StartsWith('tvos')))">13.0</AppleMinOSVersion>
 
       <_AppleSdkName Condition="'$(_AppleTargetOS)' == 'ios'">iphoneos</_AppleSdkName>
diff --git a/src/tasks/MobileBuildTasks/Apple/AppleProject.cs b/src/tasks/MobileBuildTasks/Apple/AppleProject.cs
index 03604cd943fe93..000cb60620a85e 100644
--- a/src/tasks/MobileBuildTasks/Apple/AppleProject.cs
+++ b/src/tasks/MobileBuildTasks/Apple/AppleProject.cs
@@ -27,7 +27,7 @@ public AppleProject(string projectName, string runtimeIdentifier, TaskLoggingHel
         {
             GetTargets(runtimeIdentifier, out targetOS, out targetArchitecture);
 
-            defaultMinOSVersion = (targetOS == "maccatalyst") ? "15.2" : "13.0";
+            defaultMinOSVersion = (targetOS == "maccatalyst") ? "15.0" : "13.0";
             targetAbi = DetermineAbi(targetArchitecture);
 
             AppleSdk sdk = new AppleSdk(targetOS, logger);