Klinker is a surname. Notable people with the surname include:
*
Eric Klinker, American technology executive
*
Gudrun J. Klinker (born 1958), German computer scientist
*
Lewis William Klinker (1867–1946), American businessman, author, lecturer and public figure
*
Orpha Klinker (1891–1964), American artist
*
Sheila Klinker (born 1938), American politician
*
Umberto Klinker, Surinamese football player
{{surname