diff --git a/src/libraries/System.Net.Http/src/System.Net.Http.csproj b/src/libraries/System.Net.Http/src/System.Net.Http.csproj
index 8f495ebd79224..841bae61b9ecf 100644
--- a/src/libraries/System.Net.Http/src/System.Net.Http.csproj
+++ b/src/libraries/System.Net.Http/src/System.Net.Http.csproj
@@ -6,7 +6,7 @@
     <TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent)-Linux;$(NetCoreAppCurrent)-OSX;$(NetCoreAppCurrent)-FreeBSD;$(NetCoreAppCurrent)-MacCatalyst;$(NetCoreAppCurrent)-iOS;$(NetCoreAppCurrent)-tvOS;$(NetCoreAppCurrent)-Browser;$(NetCoreAppCurrent)-illumos;$(NetCoreAppCurrent)-Solaris;$(NetCoreAppCurrent)-Android</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(TargetsOSX)' == 'true' or '$(TargetsiOS)' == 'true' or '$(TargetstvOS)' == 'true'">
+  <PropertyGroup Condition=" '$(TargetsOSX)' == 'true' or '$(TargetsiOS)' == 'true' or '$(TargetstvOS)' == 'true' or '$(TargetsMacCatalyst)' == 'true'">
     <DefineConstants>$(DefineConstants);SYSNETHTTP_NO_OPENSSL</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition="'$(TargetsBrowser)' == 'true'">
@@ -36,9 +36,10 @@
     <Compile Include="System\Net\Http\Headers\KnownHeaders.cs" />
     <Compile Include="System\Net\Http\HttpBaseStream.cs" />
     <Compile Include="System\Net\Http\HttpClient.cs" />
-    <Compile Condition="'$(TargetsAndroid)' != 'true' and '$(TargetsiOS)' != 'true' and '$(TargetsTVOS)' != 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.cs" />
+    <Compile Condition="'$(TargetsAndroid)' != 'true' and '$(TargetsiOS)' != 'true' and '$(TargetsMacCatalyst)' != 'true' and '$(TargetsTVOS)' != 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.cs" />
     <Compile Condition="'$(TargetsAndroid)' == 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.Android.cs" />
     <Compile Condition="'$(TargetsiOS)' == 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.iOS.cs" />
+    <Compile Condition="'$(TargetsMacCatalyst)' == 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.MacCatalyst.cs" />
     <Compile Condition="'$(TargetsTVOS)' == 'true'" Include="System\Net\Http\HttpClient.CreateDefaultHandler.tvOS.cs" />
     <Compile Include="System\Net\Http\HttpClientHandler.cs" />
     <Compile Include="System\Net\Http\HttpCompletionOption.cs" />
diff --git a/src/libraries/System.Net.Http/src/System/Net/Http/HttpClient.CreateDefaultHandler.MacCatalyst.cs b/src/libraries/System.Net.Http/src/System/Net/Http/HttpClient.CreateDefaultHandler.MacCatalyst.cs
new file mode 100644
index 0000000000000..dc19e0ed35d87
--- /dev/null
+++ b/src/libraries/System.Net.Http/src/System/Net/Http/HttpClient.CreateDefaultHandler.MacCatalyst.cs
@@ -0,0 +1,29 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Reflection;
+
+namespace System.Net.Http
+{
+    public partial class HttpClient
+    {
+        private static MethodInfo? handlerMethod;
+
+        private static HttpMessageHandler CreateDefaultHandler()
+        {
+            // Default is to use the iOS native handler
+            if (!IsNativeHandlerEnabled())
+            {
+                return new HttpClientHandler();
+            }
+
+            if (handlerMethod == null)
+            {
+                Type? runtimeOptions = Type.GetType("ObjCRuntime.RuntimeOptions, Xamarin.MacCatalyst");
+                handlerMethod = runtimeOptions!.GetMethod("GetHttpMessageHandler", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
+            }
+
+            return (HttpMessageHandler)handlerMethod!.Invoke(null, null)!;
+        }
+    }
+}