diff --git a/.changeset/added-xpla-chain.md b/.changeset/added-xpla-chain.md
new file mode 100644
index 0000000000..0f3253942e
--- /dev/null
+++ b/.changeset/added-xpla-chain.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added CONX chain.
diff --git a/src/chains/definitions/xpla.ts b/src/chains/definitions/xpla.ts
new file mode 100644
index 0000000000..987828c34a
--- /dev/null
+++ b/src/chains/definitions/xpla.ts
@@ -0,0 +1,23 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const xpla = /*#__PURE__*/ defineChain({
+  id: 37,
+  name: 'CONX Chain',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'XPLA',
+    symbol: 'XPLA',
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://dimension-evm-rpc.xpla.dev'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'CONX Explorer',
+      url: 'https://explorer.conx.xyz',
+    },
+  },
+  testnet: false,
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index fee6023e14..0d602475ea 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -699,6 +699,7 @@ export { xoneMainnet } from './definitions/xoneMainnet.js'
 export { xoneTestnet } from './definitions/xoneTestnet.js'
 export { xphereMainnet } from './definitions/xphereMainnet.js'
 export { xphereTestnet } from './definitions/xphereTestnet.js'
+export { xpla } from './definitions/xpla.js'
 export { xrOne } from './definitions/xrOne.js'
 export { xrplevm } from './definitions/xrplevm.js'
 export { xrplevmDevnet } from './definitions/xrplevmDevnet.js'