Martin Jahn
Martin Jahn is the name of the following people:
- Martin Jahn (around 1620–1682), German clergyman and hymn composer, see Martin Janus
- Martin Jahn (prehistoric) (1888–1974), German prehistoric
- Martin Jahn (artist) (1898–1981), German painter, draftsman and art teacher
- Martin Jahn (politician) (* 1970), Czech industrial manager and politician