Donald or Don Kelly may refer to:
Donald G. Kelly (born 1941), American politician, attorney and horse breeder Donald P. Kelly (1922–2010), Chicago businessman Don Kelly (footballer) (1922–2009), English footballer Don Kelly (baseball) (born 1980), American Major League Baseball manager and former player Don O'Kelly (1924–1966), also Don Kelly, American actor
See also Donald E. Kelley (1908–1995), associate justice of the Colorado Supreme Court