Maltzahn or Maltzan is a German surname. Well known especially is the noble family of the counts and barons von Maltza(h)n from Mecklenburg.
Notable people with the surname include:
Christian von Maltzahn, co-founder of German company Bruno Gmünder Verlag
Geoffrey von Maltzahn (born 1980), American biological engineer
Günther Freiherr von Maltzahn (1910–1953), German World War II flying ace
Heinrich von Maltzan, Baron zu Wartenburg und Penzlin (1826–1874), German traveller
Helmuth von Maltzahn (1840–1923), German finance minister and politician
Hermann von Maltzan (1843–1891), German malacologist
Joseph von Maltzahn (born 1978), British rower
Kathleen Maltzahn (born 1966), Australian author and political activist
Maria von Maltzan (1909–1997), German Resistance member
Michael Maltzan, American architect
Mortimer von Maltzan (1793–1843), Prussian diplomat and foreign minister
Vollrath von Maltzan (1899–1967), West German ambassador to France