Thunder
Thunder may refer to:
- Thunder (BattleMech), the 70-ton BattleMech
- Thunder (THR-1L) (CCG - CommandersEdition), the Commander's Edition CCG card
- Thunder (THR-1L) (CCG - Mercenaries), the Mercenaries edition CCG card
- Thunder (Individual Union-C-class DropShip), Clan Nova Cat DropShip
- Thunder (MechCommander), a Federated Suns MechWarrior from the MechCommander video game
- Minelaying ammunition: