Béla Kerékjártó (October 1, 1898, Budapest–June 26, 1946, Gyöngyös) was a Hungarian mathematician who wrote numerous articles on topology.
Kerékjártó earned his Ph.D. degree from the University of Budapest. He taught at the Faculty of Sciences of the University of Szeged from 1922, and at the University of Budapest from 1938. In 1923, he published one of the first books on Topology, and it was reviewed by Solomon Lefschetz in 1925. Hermann Weyl wrote that this book completely changed his views of the subject.
Kerékjártó proved that the sphere is the only compact surface that admits a 3-transitive topological group in 1941.
- Vorlesungen über Topologie Bd.1 Flächentopologie (1923) Springer, Grundlehren der mathematischen Wissenschaften.
- Les fondements de la géométrie. Bd.1. La construction élémentaire de la géométrie euclidienne (1955) Gauthier-Villars.
- Les fondaments de la géométrie Bd.2, Geometrie projective (1966) Gauthiers Villars.