Poppen is a surname. Notable people with the surname include:
Brent Poppen (born 1973), American wheelchair rugby player, wheelchair tennis player and activist Claudio Poppen (born 1974), Aruban football player Christoph Poppen (born 1956), German conductor Chuck Poppen (born 1952/1953), American television station manager Diemut Poppen, German violist Sean Poppen (born 1994), American baseball player Sherm Poppen (1930–2019), American engineer and inventor
See also Poppens Poppin' (disambiguation)