Rex
Rex may refer to:
- Rex (2nd Falcon Jaegers), a Clan Jade Falcon MechWarrior
- Rex (328th Assault), a Clan Wolf MechWarrior
- Rex (Individual Lola III-class WarShip), Star League Defense Force destroyer
- Rex (Jade Solahma), a Clan Jade Falcon Elemental
- Rex (Nega Garrison), a Clan Wolf Elemental