Geoffrey Smith may refer to:
- Geoffrey C. Smith (politician), member of the Ohio House of Representatives, 1999–2006
- Geoffrey C. Smith (sculptor) (born 1961), American sculptor and photographer
- Geoffrey Johnson-Smith (1924–2010), Conservative politician in the United Kingdom
- Geoffrey L. Smith (born 1955), scientist specialising in vaccinia virus poxvirus research
- Geoffrey Smith (admiral) (born 1950), Australian Deputy Chief of Navy, 1999–2000
- Geoffrey Smith (filmmaker), maker of documentaries including The English Surgeon and Presumed Guilty
- Geoffrey Smith (gardener) (1928–2009), English gardener, author, broadcaster
- Geoffrey Smith (radio presenter) (born 1943), British based American radio presenter and writer
- Geoffrey Smith (rugby league), rugby league footballer of the 1960s for Great Britain and for York
- Geoffrey Smith (bishop), Anglican Archbishop of Adelaide from 2017
- Geoffrey Stuart Smith, Anglican bishop in North Kerala