diff --git a/src/coreclr/nativeaot/System.Private.StackTraceMetadata/src/Internal/StackTraceMetadata/MethodNameFormatter.cs b/src/coreclr/nativeaot/System.Private.StackTraceMetadata/src/Internal/StackTraceMetadata/MethodNameFormatter.cs
index cc5dd065dac28b..ebfbab7a8e2c02 100644
--- a/src/coreclr/nativeaot/System.Private.StackTraceMetadata/src/Internal/StackTraceMetadata/MethodNameFormatter.cs
+++ b/src/coreclr/nativeaot/System.Private.StackTraceMetadata/src/Internal/StackTraceMetadata/MethodNameFormatter.cs
@@ -255,8 +255,12 @@ private void EmitTypeName(Handle typeHandle, bool namespaceQualified)
                     EmitString(typeHandle.ToGenericParameterHandle(_metadataReader).GetGenericParameter(_metadataReader).Name);
                     break;
 
+                case HandleType.FunctionPointerSignature:
+                    EmitFunctionPointerTypeName();
+                    break;
+
                 default:
-                    Debug.Assert(false);
+                    Debug.Assert(false, $"Type handle {typeHandle.HandleType} was not handled");
                     _outputBuilder.Append("???");
                     break;
             }
@@ -407,6 +411,14 @@ private void EmitPointerTypeName(PointerSignatureHandle pointerSigHandle)
             _outputBuilder.Append('*');
         }
 
+        /// <summary>
+        /// Emit function pointer type.
+        /// </summary>
+        private void EmitFunctionPointerTypeName()
+        {
+            _outputBuilder.Append("IntPtr");
+        }
+
         /// <summary>
         /// Emit by-reference type.
         /// </summary>
diff --git a/src/libraries/System.Diagnostics.StackTrace/tests/StackTraceTests.cs b/src/libraries/System.Diagnostics.StackTrace/tests/StackTraceTests.cs
index 801a328dc8b1bd..604a34dc8cd2a1 100644
--- a/src/libraries/System.Diagnostics.StackTrace/tests/StackTraceTests.cs
+++ b/src/libraries/System.Diagnostics.StackTrace/tests/StackTraceTests.cs
@@ -312,6 +312,15 @@ public void ToString_NullFrame_ThrowsNullReferenceException()
             Assert.Equal(Environment.NewLine, stackTrace.ToString());
         }
 
+        [Fact]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/11354", TestRuntimes.Mono)]
+        public unsafe void ToString_FunctionPointerSignature()
+        {
+            // This is sepate from ToString_Invoke_ReturnsExpected since unsafe cannot be used for iterators
+            var stackTrace = FunctionPointerParameter(null);
+            Assert.Contains("System.Diagnostics.Tests.StackTraceTests.FunctionPointerParameter(IntPtr x)", stackTrace.ToString());
+        }
+
         [ConditionalFact(typeof(RemoteExecutor), nameof(RemoteExecutor.IsSupported))]
         public void ToString_ShowILOffset()
         {
@@ -384,6 +393,9 @@ public void ToString_ShowILOffset()
         [MethodImpl(MethodImplOptions.NoOptimization | MethodImplOptions.NoInlining)]
         private static StackTrace TwoParameters(int x, string y) => new StackTrace();
 
+        [MethodImpl(MethodImplOptions.NoOptimization | MethodImplOptions.NoInlining)]
+        private unsafe static StackTrace FunctionPointerParameter(delegate*<void> x) => new StackTrace();
+
         [MethodImpl(MethodImplOptions.NoOptimization | MethodImplOptions.NoInlining)]
         private static StackTrace Generic<T>() => new StackTrace();
         [MethodImpl(MethodImplOptions.NoOptimization | MethodImplOptions.NoInlining)]
diff --git a/src/libraries/System.Diagnostics.StackTrace/tests/System.Diagnostics.StackTrace.Tests.csproj b/src/libraries/System.Diagnostics.StackTrace/tests/System.Diagnostics.StackTrace.Tests.csproj
index d6d002664cfef3..aec1d927639468 100644
--- a/src/libraries/System.Diagnostics.StackTrace/tests/System.Diagnostics.StackTrace.Tests.csproj
+++ b/src/libraries/System.Diagnostics.StackTrace/tests/System.Diagnostics.StackTrace.Tests.csproj
@@ -3,6 +3,7 @@
     <TargetFrameworks>$(NetCoreAppCurrent)</TargetFrameworks>
     <TestRuntime>true</TestRuntime>
     <IncludeRemoteExecutor>true</IncludeRemoteExecutor>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 
     <!-- these tests depend on the pdb files -->
     <DebuggerSupport Condition="'$(DebuggerSupport)' == '' and '$(TargetOS)' == 'Browser'">true</DebuggerSupport>