Heisler is a surname. Notable people with the surname include:
Charlene Heisler (1961–1999), Canadian astronomer Gregory Heisler (born 1954), American photographer L. Heisler Ball (1861–1932), American physician and politician from Delaware Marcy Heisler (born 1967), musical theater writer and performer Mike Heisler, American comic book writer Randy Heisler (born 1961), American discus thrower Stuart Heisler (1896–1979), film and television director Todd Heisler (born 1972), American photojournalist
Fictional
Conrad Heisler, character in The Angry Hills (film) Heisler Beer, a fictional brand of beer seen in movies and television shows Klaus Heisler, a talking fish character in the American television series American Dad!
See also Heisler locomotive, a geared steam locomotive
Other Heissler