diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c41002a..07d46b5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -280,6 +280,30 @@ jobs:
         run: HOMEBREW_NO_AUTO_UPDATE=1 brew install autoconf automake libtool
       - name: Run build
         run: ceedling project:tvos verbosity[4] release
+  catalyst:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.0'
+          bundler-cache: true
+      - name: Install Ceedling
+        run: sudo gem install ceedling -v 0.31.1 --no-user-install
+      - name: Install automake
+        run: HOMEBREW_NO_AUTO_UPDATE=1 brew install autoconf automake libtool
+      - name: Build arm64
+        run: CATALYST_TARGET_TRIPLE=arm64-apple-ios13.1-macabi ceedling project:catalyst verbosity[4] release
+      - name: Save arm64 build
+        run: cp build/artifacts/release/libhelium.a libhelium_arm64.a
+      - name: Clean build
+        run: ceedling project:catalyst clobber
+      - name: Build x86_64
+        run: CATALYST_TARGET_TRIPLE=x86_64-apple-ios13.1-macabi ceedling project:catalyst verbosity[4] release
+      - name: Save x86_64 build
+        run: cp build/artifacts/release/libhelium.a libhelium_x86_64.a
+      - name: Create universal binary
+        run: lipo -create libhelium_arm64.a libhelium_x86_64.a -output build/artifacts/release/libhelium.a
   android:
     runs-on: ubuntu-22.04
     strategy:
diff --git a/catalyst.yml b/catalyst.yml
new file mode 100644
index 0000000..b5795c2
--- /dev/null
+++ b/catalyst.yml
@@ -0,0 +1,36 @@
+:import:
+  - 3rd_party_deps.yml
+  - unix.yml
+
+:release_build:
+  :output: libhelium.a
+
+:dependencies:
+  :libraries:
+    - :name: WolfSSL
+      :source_path: third_party/wolfssl
+      :artifact_path: third_party/builds/wolfssl_catalyst
+      :fetch:
+        :method: :git
+        :source: $HE_WOLFSSL_SOURCE
+        :tag: $HE_WOLFSSL_TAG
+      :build:
+        - git apply ../../wolfssl/*.patch
+        - autoreconf -i
+        - cp ../../ios/autotools-ios-helper.sh ./autotools-ios-helper.sh
+        - PREFIX=$(pwd)/../builds/wolfssl_catalyst ./autotools-ios-helper.sh -maccatalyst
+      :artifacts:
+        :includes:
+          - include/**
+        :static_libraries:
+          - Release-maccatalyst/lib/libwolfssl.a
+
+:flags:
+  :release:
+    :compile:
+      :*:
+        - -target
+        - $CATALYST_TARGET_TRIPLE
+
+:environment:
+  - MACOSX_DEPLOYMENT_TARGET: "13.1"
\ No newline at end of file
diff --git a/ios/autotools-ios-helper.sh b/ios/autotools-ios-helper.sh
index 290fb50..4e5eeec 100755
--- a/ios/autotools-ios-helper.sh
+++ b/ios/autotools-ios-helper.sh
@@ -134,6 +134,43 @@ build_tvos_universal_binary() {
         "${PREFIX}/${CONFIG}-appletvos/lib/${LIB_NAME}" \
         "${PREFIX}/${CONFIG}-appletvsimulator/lib/${LIB_NAME}"
 }
+
+build_maccatalyst_arm64() {
+    export SDK="macosx"
+    export PLATFORM="maccatalyst-arm64"
+    export EFFECTIVE_PLATFORM_NAME="-maccatalyst-arm64"
+    export ARCH_OPTS="--enable-armasm --enable-sp-asm"
+    export ARCH_FLAGS="-arch arm64"
+    export HOST_FLAGS="${ARCH_FLAGS} -target arm64-apple-ios13.1-macabi -isysroot $(xcrun --sdk ${SDK} --show-sdk-path) -iframework $(xcrun --sdk ${SDK} --show-sdk-path)/System/iOSSupport/System/Library/Frameworks"
+    export CHOST="arm64-apple-darwin"
+    build
+}
+
+build_maccatalyst_x86_64() {
+    export SDK="macosx"
+    export PLATFORM="maccatalyst-x86_64"
+    export EFFECTIVE_PLATFORM_NAME="-maccatalyst-x86_64"
+    export ARCH_OPTS=""
+    export ARCH_FLAGS="-arch x86_64"
+    export HOST_FLAGS="${ARCH_FLAGS} -target x86_64-apple-ios13.1-macabi -isysroot $(xcrun --sdk ${SDK} --show-sdk-path) -iframework $(xcrun --sdk ${SDK} --show-sdk-path)/System/iOSSupport/System/Library/Frameworks"
+    export CHOST="x86_64-apple-darwin"
+    build
+}
+
+build_maccatalyst_universal_binary() {
+    # Create catalyst universal binary
+    LIB_NAME="libwolfssl.a"
+    mkdir -p "${PREFIX}/${CONFIG}-maccatalyst/lib"
+    lipo -create -output "${PREFIX}/${CONFIG}-maccatalyst/lib/${LIB_NAME}" \
+        "${PREFIX}/${CONFIG}-maccatalyst-arm64/lib/${LIB_NAME}" \
+        "${PREFIX}/${CONFIG}-maccatalyst-x86_64/lib/${LIB_NAME}"
+}
+
+build_maccatalyst() {
+    build_maccatalyst_arm64
+    build_maccatalyst_x86_64
+    build_maccatalyst_universal_binary
+}
 # Locations
 PREFIX=${PREFIX:-"$(pwd)/../builds/wolfssl_ios"}
 CONFIG=${CONFIG:-"Release"}
@@ -169,6 +206,9 @@ case "${TARGET}" in
     build_tvsimulator
     build_tvos_universal_binary
     ;;
+-maccatalyst)
+    build_maccatalyst
+    ;;
 -all)
     build_iphoneos
     build_iphonesimulator