diff --git a/packages/controller-utils/src/types.ts b/packages/controller-utils/src/types.ts
index 83b5fb5977..f71791d203 100644
--- a/packages/controller-utils/src/types.ts
+++ b/packages/controller-utils/src/types.ts
@@ -108,12 +108,12 @@ export type BlockExplorerUrl =
   (typeof BlockExplorerUrl)[keyof typeof BlockExplorerUrl];
 
 export const NetworkNickname = {
-  [BuiltInNetworkName.Mainnet]: 'Mainnet',
+  [BuiltInNetworkName.Mainnet]: 'Ethereum Mainnet',
   [BuiltInNetworkName.Goerli]: 'Goerli',
   [BuiltInNetworkName.Sepolia]: 'Sepolia',
   [BuiltInNetworkName.LineaGoerli]: 'Linea Goerli',
   [BuiltInNetworkName.LineaSepolia]: 'Linea Sepolia',
-  [BuiltInNetworkName.LineaMainnet]: 'Linea Mainnet',
+  [BuiltInNetworkName.LineaMainnet]: 'Linea',
 } as const satisfies Record<InfuraNetworkType, string>;
 export type NetworkNickname =
   (typeof NetworkNickname)[keyof typeof NetworkNickname];
diff --git a/packages/network-controller/tests/NetworkController.test.ts b/packages/network-controller/tests/NetworkController.test.ts
index 8ada6adaa0..24665f9c88 100644
--- a/packages/network-controller/tests/NetworkController.test.ts
+++ b/packages/network-controller/tests/NetworkController.test.ts
@@ -358,7 +358,7 @@ describe('NetworkController', () => {
                 "blockExplorerUrls": Array [],
                 "chainId": "0x1",
                 "defaultRpcEndpointIndex": 0,
-                "name": "Mainnet",
+                "name": "Ethereum Mainnet",
                 "nativeCurrency": "ETH",
                 "rpcEndpoints": Array [
                   Object {
@@ -428,7 +428,7 @@ describe('NetworkController', () => {
                 "blockExplorerUrls": Array [],
                 "chainId": "0xe708",
                 "defaultRpcEndpointIndex": 0,
-                "name": "Linea Mainnet",
+                "name": "Linea",
                 "nativeCurrency": "ETH",
                 "rpcEndpoints": Array [
                   Object {
@@ -3647,7 +3647,7 @@ describe('NetworkController', () => {
               }),
             ).toThrow(
               new Error(
-                "Could not add network with chain ID 0x1337 and Infura RPC endpoint for 'Mainnet' which represents 0x1, as the two conflict",
+                "Could not add network with chain ID 0x1337 and Infura RPC endpoint for 'Ethereum Mainnet' which represents 0x1, as the two conflict",
               ),
             );
           },
@@ -6531,7 +6531,7 @@ describe('NetworkController', () => {
                 ],
               }),
             ).rejects.toThrow(
-              "Could not update network to point to same RPC endpoint as existing network for chain 0x1 ('Mainnet')",
+              "Could not update network to point to same RPC endpoint as existing network for chain 0x1 ('Ethereum Mainnet')",
             );
           },
         );