Köstner
Köstner:
- August Köstner (1912–1982), German wrestler
- Eduardo Javier Rubio Köstner (born 1983, Chuquicamata), a Chile an international footballer
- Elmer Joseph Koestner (1885–1959), a Major League Baseball pitcher
- Joseph Köstner (1906–1982), Austrian bishop
- Lorenz-Günther Köstner (born 1952), a German footballer
- Sascha Köstner (born 1975), German table tennis player
Koestner
- Katie Koestner, American activist against sexual assault