Gymnasium may refer to:
- Gymnasium (ancient Greece), educational and sporting institution
- Gymnasium (school), type of secondary school that prepares students for higher education
- Gymnasium (Denmark)
- Gymnasium (Germany)
- Gym, an indoor place for physical exercise and sports
- Outdoor gym, an outdoor place for physical exercise and sports
- Gymnasium F.C. from Douglas, Isle of Man
- "Gymnasium" (song), a 1984 song by Stephen Cummings