Neumayer is a German surname. Notable people with the surname include:Astrid Neumayer, Austrian equestrian
Eric Neumayer, German economist
Federico Neumayer, Argentine swimmer
Fritz Neumayer (1884–1973), German politician
Hans Neumayer, German cyclist
Georg von Neumayer (1826–1909), German polar explorer
Laure Neumayer, French political scientist
Lukas Neumayer, Austrian tennis player
Michael Neumayer, German ski jumper
Robin Neumayer, American mathematician
Roman Neumayer, Austrian and German ice hockey executive