diff --git a/.changeset/sentrix-chain-add.md b/.changeset/sentrix-chain-add.md
new file mode 100644
index 0000000000..c13a09d631
--- /dev/null
+++ b/.changeset/sentrix-chain-add.md
@@ -0,0 +1,5 @@
+---
+"viem": minor
+---
+
+Added Sentrix Chain (`sentrix`, id `7119`) and Sentrix Testnet (`sentrixTestnet`, id `7120`) chain definitions.
diff --git a/src/chains/definitions/sentrix.ts b/src/chains/definitions/sentrix.ts
new file mode 100644
index 0000000000..3ed2975aa0
--- /dev/null
+++ b/src/chains/definitions/sentrix.ts
@@ -0,0 +1,26 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const sentrix = /*#__PURE__*/ defineChain({
+  id: 7119,
+  name: 'Sentrix Chain',
+  nativeCurrency: { name: 'Sentrix', symbol: 'SRX', decimals: 18 },
+  blockTime: 1_000,
+  rpcUrls: {
+    default: {
+      http: ['https://rpc.sentrixchain.com'],
+      webSocket: ['wss://rpc.sentrixchain.com/ws'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'SentrixScan',
+      url: 'https://scan.sentrixchain.com',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0xFd4b34b5763f54a580a0d9f7997A2A993ef9ceE9',
+      blockCreated: 717_078,
+    },
+  },
+})
diff --git a/src/chains/definitions/sentrixTestnet.ts b/src/chains/definitions/sentrixTestnet.ts
new file mode 100644
index 0000000000..b1bcbbd87b
--- /dev/null
+++ b/src/chains/definitions/sentrixTestnet.ts
@@ -0,0 +1,27 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const sentrixTestnet = /*#__PURE__*/ defineChain({
+  id: 7120,
+  name: 'Sentrix Testnet',
+  nativeCurrency: { name: 'Sentrix', symbol: 'SRX', decimals: 18 },
+  blockTime: 1_000,
+  rpcUrls: {
+    default: {
+      http: ['https://testnet-rpc.sentrixchain.com'],
+      webSocket: ['wss://testnet-rpc.sentrixchain.com/ws'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'SentrixScan Testnet',
+      url: 'https://scan-testnet.sentrixchain.com',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0x7900826De548425c6BE56caEbD4760AB0155Cd54',
+      blockCreated: 723_191,
+    },
+  },
+  testnet: true,
+})
diff --git a/src/chains/index.ts b/src/chains/index.ts
index 8895cb24d6..02d7053398 100644
--- a/src/chains/index.ts
+++ b/src/chains/index.ts
@@ -538,6 +538,8 @@ export { scrollSepolia } from './definitions/scrollSepolia.js'
 export { sei } from './definitions/sei.js'
 export { seismicDevnet } from './definitions/seismicDevnet.js'
 export { seiTestnet } from './definitions/seiTestnet.js'
+export { sentrix } from './definitions/sentrix.js'
+export { sentrixTestnet } from './definitions/sentrixTestnet.js'
 export { sepolia } from './definitions/sepolia.js'
 export { shape } from './definitions/shape.js'
 export { shapeSepolia } from './definitions/shapeSepolia.js'