diff --git a/.changeset/five-months-think.md b/.changeset/five-months-think.md
new file mode 100644
index 0000000000..8cd0e6c896
--- /dev/null
+++ b/.changeset/five-months-think.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added cronoszkEVMTestnet chain.
diff --git a/src/chains/definitions/bobaSepolia.ts b/src/chains/definitions/bobaSepolia.ts
index 1fe83d41a3..2f23ee98fa 100644
--- a/src/chains/definitions/bobaSepolia.ts
+++ b/src/chains/definitions/bobaSepolia.ts
@@ -17,4 +17,5 @@ export const bobaSepolia = /*#__PURE__*/ defineChain({
       url: 'https://testnet.bobascan.com',
     },
   },
+  testnet: true,
 })
diff --git a/src/chains/definitions/cronoszkEVMTestnet.ts b/src/chains/definitions/cronoszkEVMTestnet.ts
new file mode 100644
index 0000000000..f04f30104b
--- /dev/null
+++ b/src/chains/definitions/cronoszkEVMTestnet.ts
@@ -0,0 +1,21 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const cronoszkEVMTestnet = /*#__PURE__*/ defineChain({
+  id: 282,
+  name: 'Cronos zkEVM Testnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Cronos zkEVM Test Coin',
+    symbol: 'zkTCRO',
+  },
+  rpcUrls: {
+    default: { http: ['https://testnet.zkevm.cronos.org'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Cronos zkEVM Testnet Explorer',
+      url: 'https://explorer.zkevm.cronos.org/testnet',
+    },
+  },
+  testnet: true,
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 5f9b801ef2..b6e55cacc4 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -60,6 +60,7 @@ export { confluxESpaceTestnet } from './definitions/confluxESpaceTestnet.js'
 export { coreDao } from './definitions/coreDao.js'
 export { crab } from './definitions/crab.js'
 export { cronos } from './definitions/cronos.js'
+export { cronoszkEVMTestnet } from './definitions/cronoszkEVMTestnet.js'
 export { cronosTestnet } from './definitions/cronosTestnet.js'
 export { crossbell } from './definitions/crossbell.js'
 export { cyber } from './definitions/cyber.js'