List of Directors
The institute is run by one director with the help of a deputy director and administrative staff. The first director to be appointed when Gösta Mittag-Leffler passed away was Torsten Carleman in 1927.
- Torsten Carleman (1927–1949)
- Fritz Carlson (1949–1952)
- Otto Frostman (1952–1968)
- Lennart Carleson (1968–1984)
- Lars Hörmander (1984–1986)
- Dan Laksov (1987–1993)
- Arne Jensen (1993–1995)
- Kjell-Ove Widman (1995–2005)
- Anders Björner (2005–2011)
- Ari Laptev (2011–2018)
- Tobias Ekholm (2018 – )