Irmin may refer to:
- Irmin Schmidt (born 1937), German keyboardist and composer
- A Germanic deity in some currents of Germanic neopaganism, especially in Irminism
- The son of Mannus, a figure in the creation myths of the Germanic tribes; possibly the same god as Odin
See also
- Erma (disambiguation)
- Ermin
- Ermine (disambiguation)
- Irma (disambiguation)
- Irminsul