diff --git a/.changeset/five-geese-press.md b/.changeset/five-geese-press.md
new file mode 100644
index 0000000000..7b76604ad9
--- /dev/null
+++ b/.changeset/five-geese-press.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added Bitgert Mainnet.
diff --git a/src/chains/definitions/bitgert.ts b/src/chains/definitions/bitgert.ts
new file mode 100644
index 0000000000..1e10d75648
--- /dev/null
+++ b/src/chains/definitions/bitgert.ts
@@ -0,0 +1,21 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const bitgert = /*#__PURE__*/ defineChain({
+  id: 32520,
+  name: 'Bitgert Mainnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Brise',
+    symbol: 'Brise',
+  },
+  rpcUrls: {
+    default: { http: ['https://rpc-bitgert.icecreamswap.com'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Bitgert Scan',
+      url: 'https://brisescan.com',
+    },
+  },
+  testnet: false,
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 0195a11ec2..85a5841278 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -44,6 +44,7 @@ export { berachainTestnet } from './definitions/berachainTestnet.js'
 export { berachainTestnetbArtio } from './definitions/berachainTestnetbArtio.js'
 export { bevmMainnet } from './definitions/bevmMainnet.js'
 export { bifrost } from './definitions/bifrost.js'
+export { bitgert } from './definitions/bitgert.js'
 export { bitkub } from './definitions/bitkub.js'
 export { bitkubTestnet } from './definitions/bitkubTestnet.js'
 export { bitlayer } from './definitions/bitlayer.js'