diff --git a/eng/pipelines/helix-platforms.yml b/eng/pipelines/helix-platforms.yml
index 52d138034aed1d..e1ddcef6681bd8 100644
--- a/eng/pipelines/helix-platforms.yml
+++ b/eng/pipelines/helix-platforms.yml
@@ -130,9 +130,9 @@ variables:
     value: (Fedora.42.Amd64.Open)AzureLinux.3.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-42-helix-amd64
 
   # openSUSE x64
-  # Latest: 15.6
+  # Latest: 16.0
   - name: helix_linux_x64_opensuse_latest
-    value: (openSUSE.15.6.Amd64.Open)AzureLinux.3.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-15.6-helix-amd64
+    value: (openSUSE.16.0.Amd64.Open)AzureLinux.3.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-16.0-helix-amd64
 
   # Oldest: 15.5
   - name: helix_linux_x64_opensuse_oldest
diff --git a/eng/pipelines/libraries/helix-queues-setup.yml b/eng/pipelines/libraries/helix-queues-setup.yml
index e81bae6ba29e35..6438a288f70681 100644
--- a/eng/pipelines/libraries/helix-queues-setup.yml
+++ b/eng/pipelines/libraries/helix-queues-setup.yml
@@ -63,7 +63,7 @@ jobs:
             # extra-platforms CoreCLR (inner loop only)
             - (Debian.13.Amd64.Open)AzureLinux.3.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-13-helix-amd64
             - (Fedora.43.Amd64.Open)AzureLinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-43-helix-amd64
-            - (openSUSE.15.6.Amd64.Open)AzureLinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-15.6-helix-amd64
+            - (openSUSE.16.0.Amd64.Open)AzureLinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-16.0-helix-amd64
             - (Ubuntu.2604.Amd64.Open)AzureLinux.3.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-26.04-helix-amd64
 
           - ${{ if eq(parameters.jobParameters.testScope, 'outerloop') }}:
diff --git a/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs b/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs
index fa79e2845b4dad..1383c8f7e062d6 100644
--- a/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs
+++ b/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs
@@ -17,6 +17,7 @@ public static partial class PlatformDetection
 
         public static bool IsLinux => RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
         public static bool IsOpenSUSE => IsDistroAndVersion("opensuse");
+        public static bool IsOpenSUSE16 => IsDistroAndVersion("opensuse", 16) || IsDistroAndVersion("opensuse-leap", 16);
         public static bool IsUbuntu => IsDistroAndVersion("ubuntu");
         public static bool IsUbuntu26 => IsDistroAndVersion("ubuntu", 26);
         public static bool IsUbuntu24 => IsDistroAndVersion("ubuntu", 24);
diff --git a/src/libraries/System.Net.Security/tests/UnitTests/NegotiateAuthenticationTests.cs b/src/libraries/System.Net.Security/tests/UnitTests/NegotiateAuthenticationTests.cs
index 433c3dfe269ae6..e17aa64b85436f 100644
--- a/src/libraries/System.Net.Security/tests/UnitTests/NegotiateAuthenticationTests.cs
+++ b/src/libraries/System.Net.Security/tests/UnitTests/NegotiateAuthenticationTests.cs
@@ -18,7 +18,7 @@ namespace System.Net.Security.Tests
     public class NegotiateAuthenticationTests
     {
         // Ubuntu 24 and 26 ship with broekn gss-ntlmssp 1.2
-        private static bool UseManagedNtlm => PlatformDetection.IsUbuntu24 || PlatformDetection.IsUbuntu26;
+        private static bool UseManagedNtlm => PlatformDetection.IsUbuntu24 || PlatformDetection.IsUbuntu26 || PlatformDetection.IsOpenSUSE16;
         private static bool IsNtlmAvailable => UseManagedNtlm || Capability.IsNtlmInstalled() || OperatingSystem.IsAndroid() || OperatingSystem.IsTvOS();
         private static bool IsNtlmUnavailable => !IsNtlmAvailable;