Ortmann is a central German family name, which in the Middle Ages stood for the job called "ortman." This was an arbiter who decided in situations where there is a stalemate.
Ortmann is the surname of the following persons:
Anton Ortmann (1801–1861), Bohemian-Austrian botanist, with the botanical authority abbreviation Ortmann
Arnold Edward Ortmann (1863–1927), German zoologist and botanist, with the botanical authority abbreviation A.E.Ortmann
Andreas Ortmann, economist
Chuck Ortmann (born 1929), former American football player
Edwin Ortmann (1941) German author and translator
Friedhelm Ortmann (born 1927), German director of radio dramas
Günther Ortmann (1916–2002), German handball player
Oliver Ortmann (born 1967), German pool billiard player
Siegbert Ortmann (born 1940), politician in the state of Hesse (CDU)
Siegfried Ortmann (born 1937), German archer
Wilfried Ortmann (1924–1994), German actor
Ortmann is also the name of
a division in the town of Pernitz, in Austria