Meinertzhagen may refer to: People Annie Meinertzhagen (1889–1928), British ornithologist Ian Meinertzhagen (born 1944), Canadian neurobiologist Louis Meinertzhagen (1887–1941), British philatelist Richard Meinertzhagen (1878–1967), British Army officer and ornithologist Places Meinerzhagen, town in the Märkischer Kreis, North Rhine-Westphalia (Germany)