Guardian
Guardian may refer to:
- Guardian (BattleMech), the 15-ton ultralight BattleMech
- Guardian (Conventional Fighter), the close air support fighter
- Guardian (Individual Excalibur-class DropShip), a Federated Commonwealth DropShip
- Guardian (Individual Union-class DropShip), a Draconis Combine DropShip
- Guardian (rank), or "Guardian of the State" more properly, is the Outworlds Alliance military rank equivalent to a sergeant
- Guardian ECM Suite, the electronics equipment
- Guardians, a short story by Loren L. Coleman published in Total Warfare
- Thaeros Eindraer, whose nickname/callsign was "Guardian"
- The Guardian series of Ulsop Robotics drones:
- Giant Guardian, the 80-ton vehicle
- Main Guardian, the 60-ton vehicle
- Swift Guardian, the 5-ton vehicle

