diff --git a/.changeset/blue-planets-give.md b/.changeset/blue-planets-give.md
new file mode 100644
index 00000000000..fe6142a2933
--- /dev/null
+++ b/.changeset/blue-planets-give.md
@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+add trextestnet to chains package
diff --git a/packages/thirdweb/src/chains/chain-definitions/t-rex-testnet.ts b/packages/thirdweb/src/chains/chain-definitions/t-rex-testnet.ts
new file mode 100644
index 00000000000..2a58cedd9a4
--- /dev/null
+++ b/packages/thirdweb/src/chains/chain-definitions/t-rex-testnet.ts
@@ -0,0 +1,17 @@
+import { defineChain } from "../utils.js";
+
+/**
+ * @chain
+ */
+export const tRexTestnet = /*@__PURE__*/ defineChain({
+  blockExplorers: [
+    {
+      name: "T-Rex Testnet Block Explorer",
+      url: "https://testnet.trex.xyz/",
+    },
+  ],
+  id: 1962,
+  name: "T-Rex Testnet",
+  nativeCurrency: { decimals: 18, name: "Ether", symbol: "ETH" },
+  testnet: true,
+});
diff --git a/packages/thirdweb/src/exports/chains.ts b/packages/thirdweb/src/exports/chains.ts
index 8a73ef5962b..293af1649a3 100644
--- a/packages/thirdweb/src/exports/chains.ts
+++ b/packages/thirdweb/src/exports/chains.ts
@@ -69,6 +69,7 @@ export { scrollAlphaTestnet } from "../chains/chain-definitions/scroll-alpha-tes
 export { scrollSepoliaTestnet } from "../chains/chain-definitions/scroll-sepolia-testnet.js";
 export { sepolia } from "../chains/chain-definitions/sepolia.js";
 export { soneiumMinato } from "../chains/chain-definitions/soneium-minato.js";
+export { tRexTestnet } from "../chains/chain-definitions/t-rex-testnet.js";
 export { treasure } from "../chains/chain-definitions/treasure.js";
 export { treasureTopaz } from "../chains/chain-definitions/treasureTopaz.js";
 export { xai } from "../chains/chain-definitions/xai.js";