diff --git a/cmake/vcpkg-ports/cpuinfo/patch_cpuinfo_h_for_arm64ec.patch b/cmake/vcpkg-ports/cpuinfo/patch_cpuinfo_h_for_arm64ec.patch
new file mode 100644
index 0000000000000..23ceeb8f758cc
--- /dev/null
+++ b/cmake/vcpkg-ports/cpuinfo/patch_cpuinfo_h_for_arm64ec.patch
@@ -0,0 +1,22 @@
+diff --git a/include/cpuinfo.h b/include/cpuinfo.h
+index f1d35d4..9e454d2 100644
+--- a/include/cpuinfo.h
++++ b/include/cpuinfo.h
+@@ -18,7 +18,7 @@
+ #define CPUINFO_ARCH_X86 1
+ #endif
+ 
+-#if defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
++#if defined(__x86_64__) || defined(__x86_64) || (defined(_M_X64) && !defined(_M_ARM64EC)) || (defined(_M_AMD64) && !defined(_M_ARM64EC))
+ #define CPUINFO_ARCH_X86_64 1
+ #endif
+ 
+@@ -26,7 +26,7 @@
+ #define CPUINFO_ARCH_ARM 1
+ #endif
+ 
+-#if defined(__aarch64__) || defined(_M_ARM64)
++#if defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
+ #define CPUINFO_ARCH_ARM64 1
+ #endif
+ 
diff --git a/cmake/vcpkg-ports/cpuinfo/portfile.cmake b/cmake/vcpkg-ports/cpuinfo/portfile.cmake
index 6722f10a72857..3fcf76b7adafc 100644
--- a/cmake/vcpkg-ports/cpuinfo/portfile.cmake
+++ b/cmake/vcpkg-ports/cpuinfo/portfile.cmake
@@ -9,6 +9,8 @@ vcpkg_from_github(
     REF de0ce7c7251372892e53ce9bc891750d2c9a4fd8
     SHA512 0fde9210b700d2648d37c8deeb0d5c0d007d8ca5689578dd3bce4c460886b20d7649f0194d2ea06b02238fe9d4f06193599ec3ab5cafb19f1f860b00404264fa
     HEAD_REF master
+    PATCHES
+        patch_cpuinfo_h_for_arm64ec.patch
 )
 
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS