diff --git a/.changeset/brown-pens-beam.md b/.changeset/brown-pens-beam.md
new file mode 100644
index 0000000000..e9508aef88
--- /dev/null
+++ b/.changeset/brown-pens-beam.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added taiko mainnet
diff --git a/src/chains/definitions/taiko.ts b/src/chains/definitions/taiko.ts
new file mode 100644
index 0000000000..ab1ac9f8c3
--- /dev/null
+++ b/src/chains/definitions/taiko.ts
@@ -0,0 +1,29 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const taiko = /*#__PURE__*/ defineChain({
+  id: 167000,
+  name: 'Taiko Mainnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Ether',
+    symbol: 'ETH',
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://rpc.mainnet.taiko.xyz'],
+      webSocket: ['wss://ws.mainnet.taiko.xyz'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Taikoscan',
+      url: 'https://taikoscan.network',
+      apiUrl: 'https://taikoscan.network/api',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0xcb2436774C3e191c85056d248EF4260ce5f27A9D',
+    },
+  },
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 92717e376f..d5372e8141 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -240,6 +240,7 @@ export { stratis } from './definitions/stratis.js'
 export { syscoin } from './definitions/syscoin.js'
 export { syscoinTestnet } from './definitions/syscoinTestnet.js'
 export { taraxa } from './definitions/taraxa.js'
+export { taiko } from './definitions/taiko.js'
 export { taikoHekla } from './definitions/taikoHekla.js'
 export { taikoJolnir } from './definitions/taikoJolnir.js'
 export { taikoKatla } from './definitions/taikoKatla.js'