Smalley is a surname. Notable people with the surname include:
Adam Smalley, British racing driver Beryl Smalley, historian Bill Smalley, British footballer Dave Smalley, musician Dave Smalley (Cleveland), musician David Allen Smalley (1809–1877), American judge and politician Denis Smalley, musician Eugene Byron Smalley, plant pathologist Gary Smalley, counselor Hal Smalley, politician Howard Smalley (born 1942), New Zealand cricketer Kyle E. Smalley, astronomer Luke Smalley (1955–2009), American photographer Phillips Smalley, film director Richard Smalley (1943–2005), Nobel prize in chemistry Roger Smalley (1943–2015), musician Roy Smalley Jr., baseball player Roy Smalley III, baseball player Sherman E. Smalley (1866–1958), American politician and jurist Stephen Smalley (1931–2024), British Anglican priest Tom Smalley (1912–1984), England footballer Will Smalley, American baseball player William A. Smalley (1923–1997), linguist William E. Smalley, American bishop
Fictional Stuart Smalley, fictional character