Oestmann
Oestmann is the family name of the following people:
- Günther Oestmann (* 1959), German science historian
- Heinz Oestmann (1950–2018), Elbe fisherman and environmentalist from Hamburg; 1985/1986 Member of the Green Alternative List (GAL) in the Hamburg Parliament
- Karl-Dieter Oestmann (* 1934), Lower Saxony politician (CDU)
- Peter Oestmann (* 1967), German legal historian and university lecturer