diff --git a/CHANGELOG.md b/CHANGELOG.md
index 657fe2ad5..1ac14f931 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 * bump snapshot version to 4.12.3 [#2101](https://github.com/hyperledger/web3j/pull/2101)
 * Add HSM kms implementation [#2105](https://github.com/hyperledger/web3j/pull/2105)
+* Added support for Holesky [#2111](https://github.com/hyperledger/web3j/pull/2111)
 
 ### BREAKING CHANGES
 
diff --git a/core/src/main/java/org/web3j/ens/Contracts.java b/core/src/main/java/org/web3j/ens/Contracts.java
index 9922e07b9..0b3ad45a6 100644
--- a/core/src/main/java/org/web3j/ens/Contracts.java
+++ b/core/src/main/java/org/web3j/ens/Contracts.java
@@ -22,6 +22,7 @@ public class Contracts {
     public static final String RINKEBY = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e";
     public static final String GOERLI = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e";
     public static final String SEPOLIA = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e";
+    public static final String HOLESKY = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e";
     public static final String LINEA = "0x50130b669B28C339991d8676FA73CF122a121267";
     public static final String LINEA_SEPOLIA = "0x5B2636F0f2137B4aE722C01dd5122D7d3e9541f7";
 
@@ -37,6 +38,8 @@ public static String resolveRegistryContract(String chainId) {
             return GOERLI;
         } else if (chainIdLong.equals(ChainIdLong.SEPOLIA)) {
             return SEPOLIA;
+        } else if (chainIdLong.equals(ChainIdLong.HOLESKY)) {
+            return HOLESKY;
         } else if (chainIdLong.equals(ChainIdLong.LINEA)) {
             return LINEA;
         } else if (chainIdLong.equals(ChainIdLong.LINEA_SEPOLIA)) {
diff --git a/core/src/main/java/org/web3j/tx/ChainIdLong.java b/core/src/main/java/org/web3j/tx/ChainIdLong.java
index 378dca30d..81a8961d7 100644
--- a/core/src/main/java/org/web3j/tx/ChainIdLong.java
+++ b/core/src/main/java/org/web3j/tx/ChainIdLong.java
@@ -20,6 +20,7 @@ public class ChainIdLong {
     public static final long RINKEBY = 4;
     public static final long GOERLI = 5;
     public static final long SEPOLIA = 11155111;
+    public static final long HOLESKY = 17000;
     public static final long ROOTSTOCK_MAINNET = 30;
     public static final long ROOTSTOCK_TESTNET = 31;
     public static final long KOVAN = 42;
diff --git a/core/src/test/java/org/web3j/ens/ContractsTest.java b/core/src/test/java/org/web3j/ens/ContractsTest.java
index 273a5a0b3..2f2cb7e5b 100644
--- a/core/src/test/java/org/web3j/ens/ContractsTest.java
+++ b/core/src/test/java/org/web3j/ens/ContractsTest.java
@@ -18,6 +18,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.web3j.ens.Contracts.HOLESKY;
 import static org.web3j.ens.Contracts.LINEA;
 import static org.web3j.ens.Contracts.LINEA_SEPOLIA;
 import static org.web3j.ens.Contracts.MAINNET;
@@ -35,6 +36,7 @@ public void testResolveRegistryContract() {
         assertEquals(resolveRegistryContract(ChainIdLong.ROPSTEN + ""), (ROPSTEN));
         assertEquals(resolveRegistryContract(ChainIdLong.RINKEBY + ""), (RINKEBY));
         assertEquals(resolveRegistryContract(ChainIdLong.SEPOLIA + ""), (SEPOLIA));
+        assertEquals(resolveRegistryContract(ChainIdLong.HOLESKY + ""), (HOLESKY));
         assertEquals(resolveRegistryContract(ChainIdLong.LINEA + ""), (LINEA));
         assertEquals(resolveRegistryContract(ChainIdLong.LINEA_SEPOLIA + ""), (LINEA_SEPOLIA));
     }