diff --git a/.chronus/changes/http-client-java_fix-singular-on-caches-2026-3-10-16-19-20.md b/.chronus/changes/http-client-java_fix-singular-on-caches-2026-3-10-16-19-20.md
new file mode 100644
index 00000000000..625d279bc3a
--- /dev/null
+++ b/.chronus/changes/http-client-java_fix-singular-on-caches-2026-3-10-16-19-20.md
@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-client-java"
+---
+
+Fix bug that singular form of "Caches" is incorrect
diff --git a/packages/http-client-java/generator/http-client-generator-mgmt/src/main/java/com/microsoft/typespec/http/client/generator/mgmt/util/Utils.java b/packages/http-client-java/generator/http-client-generator-mgmt/src/main/java/com/microsoft/typespec/http/client/generator/mgmt/util/Utils.java
index 17854956f3b..83d13bd7d56 100644
--- a/packages/http-client-java/generator/http-client-generator-mgmt/src/main/java/com/microsoft/typespec/http/client/generator/mgmt/util/Utils.java
+++ b/packages/http-client-java/generator/http-client-generator-mgmt/src/main/java/com/microsoft/typespec/http/client/generator/mgmt/util/Utils.java
@@ -44,6 +44,10 @@ public static String getNameForUngroupedOperations(Client client, FluentJavaSett
         return nameForUngroupOperations;
     }
 
+    static {
+        Pluralize.addSingularRule("caches", "cache");
+    }
+
     public static String getSingular(String name) {
         if (name == null) {
             return null;
diff --git a/packages/http-client-java/generator/http-client-generator-mgmt/src/test/java/com/microsoft/typespec/http/client/generator/mgmt/util/FluentUtilsTests.java b/packages/http-client-java/generator/http-client-generator-mgmt/src/test/java/com/microsoft/typespec/http/client/generator/mgmt/util/FluentUtilsTests.java
index cbca2c5741a..ebae84f7704 100644
--- a/packages/http-client-java/generator/http-client-generator-mgmt/src/test/java/com/microsoft/typespec/http/client/generator/mgmt/util/FluentUtilsTests.java
+++ b/packages/http-client-java/generator/http-client-generator-mgmt/src/test/java/com/microsoft/typespec/http/client/generator/mgmt/util/FluentUtilsTests.java
@@ -97,6 +97,9 @@ public void testGetSingular() {
         // irregular (children → child)
         Assertions.assertEquals("child", FluentUtils.getSingular("children"));
 
+        // require addSingularRule
+        Assertions.assertEquals("Cache", FluentUtils.getSingular("Caches"));
+
         // Azure resource style names
         Assertions.assertEquals("VirtualMachine", FluentUtils.getSingular("VirtualMachines"));
         Assertions.assertEquals("NetworkInterface", FluentUtils.getSingular("NetworkInterfaces"));