Magnes may refer to:
- Macarius Magnes, bishop of Magnesia
- Judah Leon Magnes (1877–1948), rabbi
- Judah L. Magnes Museum, a Jewish museum in Berkeley, California, named after the rabbi
- Magnes (album), the fifth solo album released by Reni Jusis
- Magnes (mythology), two different heroes in Greek mythology
- Magnes (comic poet) 5th c.BC
- Magnes (publishing house), an academic publishing house in Jerusalem