diff --git a/.changeset/mighty-bags-play.md b/.changeset/mighty-bags-play.md
new file mode 100644
index 0000000000..db5298cb7d
--- /dev/null
+++ b/.changeset/mighty-bags-play.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added loop chain.
diff --git a/src/chains/definitions/loop.ts b/src/chains/definitions/loop.ts
new file mode 100644
index 0000000000..b321a4e621
--- /dev/null
+++ b/src/chains/definitions/loop.ts
@@ -0,0 +1,23 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const loop = /*#__PURE__*/ defineChain({
+  id: 15551,
+  name: 'LoopNetwork Mainnet',
+  nativeCurrency: {
+    name: 'LOOP',
+    symbol: 'LOOP',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://api.mainnetloop.com'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'LoopNetwork Blockchain Explorer',
+      url: 'https://explorer.mainnetloop.com/',
+    },
+  },
+  testnet: false
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index f64111f805..36923d520b 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -199,6 +199,7 @@ export { lineaTestnet } from './definitions/lineaTestnet.js'
 export { lisk } from './definitions/lisk.js'
 export { liskSepolia } from './definitions/liskSepolia.js'
 export { localhost } from './definitions/localhost.js'
+export { loop } from './definitions/loop.js'
 export { lukso } from './definitions/lukso.js'
 export { luksoTestnet } from './definitions/luksoTestnet.js'
 export { lycan } from './definitions/lycan.js'