Yarnall is a surname. Notable people with the surname include:
Bert Yarnall (1892–1943), Scottish footballer Celeste Yarnall (1944–2018), American actress D. Robert Yarnall (1878–1967), American mechanical engineer Ed Yarnall (born 1975), American baseball player John Yarnall (1786–1915), American military officer Rusty Yarnall (1902–1985), American baseball player
See also C. Yarnall Abbott (1870–1938), American painter Robert Yarnall Richie (1908–1984), American photographer