Magister is Latin for "master" or "teacher." It may refer to:
- The Magister (degree), an academic degree
Positions or titles
- A magister equitum, or Master of the Horse
- A magister officiorum (master of offices), a civilian post of the Roman Empire
- A magister militum, a master of the soldiers
- A magister palatii (Master of the Sacred Palace), a Roman Catholic Curial position
Airplanes
- The Fouga Magister, a French training aircraft
- The Miles Magister, a British training aircraft
Animals
- Neotoma magister, a species of pack rat
- Berryteuthis magister, a species of squid
- Metacarcinus magister, the Dungeness crab
People
- Dositheus Magister, a 4th-century Roman scholar
- Thomas Magister, a 14th-century Byzantine monk and scholar
- Magister Wigbold, a 14th-century German pirate
Other
- Magister, a font designed by Aldo Novarese (1966)
- Magister Ludi, an alternate title for Herman Hesse's novel The Glass Bead Game
- Magister (company) – A manufacturer of espresso machines.
- The Magister, a sourcebook for the Forgotten Realms setting of the Dungeons & Dragons RPG