diff --git a/specification/keyvault/Security.KeyVault.Common/common.tsp b/specification/keyvault/Security.KeyVault.Common/common.tsp
index ccaffdd9fb3f..09bdf90cce52 100644
--- a/specification/keyvault/Security.KeyVault.Common/common.tsp
+++ b/specification/keyvault/Security.KeyVault.Common/common.tsp
@@ -15,8 +15,10 @@ alias KeyVaultOperation<
  * The key vault server error.
  */
 #suppress "@azure-tools/typespec-azure-core/no-nullable" "Intentionally nullable model"
+#suppress "@azure-tools/typespec-client-generator-core/no-unnamed-types" "Backcompatibility with existing clients"
 union Error {
   null,
+  #suppress "@azure-tools/typespec-client-generator-core/no-unnamed-types" "Backcompatibility with existing clients"
   {
     /**
      * The error code.
diff --git a/specification/onlineexperimentation/OnlineExperimentation.Management/OnlineExperimentationWorkspace.tsp b/specification/onlineexperimentation/OnlineExperimentation.Management/OnlineExperimentationWorkspace.tsp
index 47b58a9596f7..80240e7f2ccb 100644
--- a/specification/onlineexperimentation/OnlineExperimentation.Management/OnlineExperimentationWorkspace.tsp
+++ b/specification/onlineexperimentation/OnlineExperimentation.Management/OnlineExperimentationWorkspace.tsp
@@ -45,6 +45,7 @@ model OnlineExperimentationWorkspacePatch {
   /**
    * Updatable properties of the online experimentation workspace resource.
    */
+  #suppress "@azure-tools/typespec-client-generator-core/no-unnamed-types" "Backcompatibility with existing clients"
   properties?: {
     /**
      * The resource identifier of the Log Analytics workspace which online experimentation workspace uses for generating experiment analysis results.
diff --git a/specification/orbital/Microsoft.PlanetaryComputer/inma.tsp b/specification/orbital/Microsoft.PlanetaryComputer/inma.tsp
index a5c8409970e5..a811cdb5ccc1 100644
--- a/specification/orbital/Microsoft.PlanetaryComputer/inma.tsp
+++ b/specification/orbital/Microsoft.PlanetaryComputer/inma.tsp
@@ -386,6 +386,7 @@ namespace StacItems {
      * This union allows the request body to accept either a single Item or a collection of Items.
      */
     #suppress "@azure-tools/typespec-autorest/union-unsupported" ""
+    #suppress "@azure-tools/typespec-client-generator-core/no-unnamed-types" "Backcompatibility with existing clients"
     @body
     body: StacItem | ItemCollection,
   ): {
diff --git a/specification/orbital/Microsoft.PlanetaryComputer/models.stac.spec.tsp b/specification/orbital/Microsoft.PlanetaryComputer/models.stac.spec.tsp
index 51476469f137..7f3c3c0e88f6 100644
--- a/specification/orbital/Microsoft.PlanetaryComputer/models.stac.spec.tsp
+++ b/specification/orbital/Microsoft.PlanetaryComputer/models.stac.spec.tsp
@@ -867,6 +867,7 @@ model Link {
    * Specifies the HTTP method that the resource expects.
    * Default: GET.
    */
+  #suppress "@azure-tools/typespec-azure-client-generator-core/no-unnamed-types" "Backcompatibility with existing clients"
   method?: "GET" | "POST" | string = "GET";
 
   /**