diff --git a/.changeset/breezy-geese-train.md b/.changeset/breezy-geese-train.md
new file mode 100644
index 0000000000..9614ab3d19
--- /dev/null
+++ b/.changeset/breezy-geese-train.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added Cannon chain.
diff --git a/src/chains/definitions/cannon.ts b/src/chains/definitions/cannon.ts
new file mode 100644
index 0000000000..6b98f7fa1b
--- /dev/null
+++ b/src/chains/definitions/cannon.ts
@@ -0,0 +1,14 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const cannon = /*#__PURE__*/ defineChain({
+  id: 13_370,
+  name: 'Cannon',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Ether',
+    symbol: 'ETH',
+  },
+  rpcUrls: {
+    default: { http: ['http://127.0.0.1:8545'] },
+  },
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 80d35583a4..e53dab8fa5 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -57,6 +57,7 @@ export { btr } from './definitions/btr.js'
 export { btrTestnet } from './definitions/btrTestnet.js'
 export { bxn } from './definitions/bxn.js'
 export { bxnTestnet } from './definitions/bxnTestnet.js'
+export { cannon } from './definisions/cannon.js'
 export { canto } from './definitions/canto.js'
 export { celo } from './definitions/celo.js'
 export { celoAlfajores } from './definitions/celoAlfajores.js'