diff --git a/packages/adapter-evm/src/networks/index.ts b/packages/adapter-evm/src/networks/index.ts
index 6a46cf23..65e935c5 100644
--- a/packages/adapter-evm/src/networks/index.ts
+++ b/packages/adapter-evm/src/networks/index.ts
@@ -19,6 +19,7 @@ import {
   bscTestnet,
   ethereumSepolia,
   lineaSepolia,
+  monadTestnet,
   optimismSepolia,
   polygonAmoy,
   polygonZkEvmCardona,
@@ -55,6 +56,7 @@ export const evmTestnetNetworks: TypedEvmNetworkConfig[] = [
   lineaSepolia,
   scrollSepolia,
   zksyncSepoliaTestnet,
+  monadTestnet,
   // Other testnet networks...
 ];
 
@@ -89,4 +91,5 @@ export {
   lineaSepolia,
   scrollSepolia,
   zksyncSepoliaTestnet,
+  monadTestnet,
 };
diff --git a/packages/adapter-evm/src/networks/testnet.ts b/packages/adapter-evm/src/networks/testnet.ts
index 6a1ee001..63865b0b 100644
--- a/packages/adapter-evm/src/networks/testnet.ts
+++ b/packages/adapter-evm/src/networks/testnet.ts
@@ -4,6 +4,7 @@ import {
   baseSepolia as viemBaseSepolia,
   bscTestnet as viemBscTestnet,
   lineaSepolia as viemLineaSepolia,
+  monadTestnet as viemMonadTestnet,
   optimismSepolia as viemOptimismSepolia,
   polygonAmoy as viemPolygonAmoy,
   polygonZkEvmCardona as viemPolygonZkEvmCardona,
@@ -269,4 +270,27 @@ export const lineaSepolia: TypedEvmNetworkConfig = {
   viemChain: viemLineaSepolia,
 };
 
+export const monadTestnet: TypedEvmNetworkConfig = {
+  id: 'monad-testnet',
+  exportConstName: 'monadTestnet',
+  name: 'Monad Testnet',
+  ecosystem: 'evm',
+  network: 'monad',
+  type: 'testnet',
+  isTestnet: true,
+  chainId: 10143,
+  rpcUrl: viemMonadTestnet.rpcUrls.default.http[0],
+  explorerUrl: 'https://testnet.monadexplorer.com',
+  apiUrl: 'https://api.etherscan.io/v2/api',
+  primaryExplorerApiIdentifier: 'mondad-explorer',
+  supportsEtherscanV2: true,
+  icon: 'monad',
+  nativeCurrency: {
+    name: 'Monad',
+    symbol: 'MON',
+    decimals: 18,
+  },
+  viemChain: viemMonadTestnet,
+};
+
 // TODO: Add other EVM testnet networks as needed (e.g., Arbitrum Sepolia)