Dahler is a surname. Notable people with the surname include:
Don Dahler (born 1960), American journalist and writer Ed Dahler (1926–2012), American basketball player Lucien Dähler (born 2001), Swiss footballer Oliver Dahler (born 1969), German water polo player P. F. Dahler (1883–1948), Dutch politician Wolfgang Dahler (born 1975), German politician
See also Bahler