Frosterus
Frosterus is the family name of the following people:
- Alexandra Frosterus-Såltin (1837–1916), Finnish painter from the Düsseldorf School
- Benjamin Frosterus (1866–1931), Finnish geologist and soil scientist
- Johan Gustaf Frosterus (1826–1901), historian
- Sigurd Frosterus (1876–1956), Finnish architect and art critic