diff --git a/.changeset/loud-shoes-allow.md b/.changeset/loud-shoes-allow.md
new file mode 100644
index 0000000000..f3602adc88
--- /dev/null
+++ b/.changeset/loud-shoes-allow.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added Shape Sepolia chain.
diff --git a/src/chains/definitions/shapeSepolia.ts b/src/chains/definitions/shapeSepolia.ts
new file mode 100644
index 0000000000..08ffb2a562
--- /dev/null
+++ b/src/chains/definitions/shapeSepolia.ts
@@ -0,0 +1,19 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const shapeSepolia = /*#__PURE__*/ defineChain({
+  id: 11_011,
+  name: 'Shape Sepolia Testnet',
+  nativeCurrency: { name: 'Sepolia Ether', symbol: 'ETH', decimals: 18 },
+  rpcUrls: {
+    default: {
+      http: ['https://sepolia.shape.network'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'blockscout',
+      url: 'https://shape-sepolia-explorer.alchemy.com',
+      apiUrl: 'https://shape-sepolia-explorer.alchemy.com/api/v2',
+    },
+  },
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 42fd28106b..ba90af6865 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -242,6 +242,7 @@ export { sei } from './definitions/sei.js'
 export { seiDevnet } from './definitions/seiDevnet.js'
 export { seiTestnet } from './definitions/seiTestnet.js'
 export { sepolia } from './definitions/sepolia.js'
+export { shapeSepolia } from './definitions/shapeSepolia.js'
 export { shimmer } from './definitions/shimmer.js'
 export { shimmerTestnet } from './definitions/shimmerTestnet.js'
 export { skaleBlockBrawlers } from './definitions/skale/brawl.js'