Lionel Baier
- Born
- 13 December 1975 (50 years)
- Place of birth
- Lausanne, Switzerland
- Gender
- Male
Lionel Baier is a Swiss filmmaker. He studied Art at University of Lausanne from 1995–98. In 2009, he co-founded the production company Bande à Part films, together with Ursula Meier, Jean-Stéphane Bron and Frédéric Mermoud.
