Others
- John Andrew Rice (1888–1968), founder of the Black Mountain College
- John A. Rice (musicologist), American musicologist and Mozart scholar
- John G. Rice, vice chairman of General Electric, and president and CEO of GE Infrastructure
- John M. Rice (chess composer) (born 1937), former president of Permanent Commission of the FIDE for Chess Compositions
- John R. Rice (1895–1980), Evangelist, founder of The Sword of the Lord
- John R. Rice (professor) (born 1934), computer scientist and mathematician
- John R. Rice, inventor of the Angel paintball gun
- John Raymond Rice (1914–1950), U.S. Army soldier killed in South Korea, known for the circumstances surrounding his burial
- John Rice (1951–2005), one of the identical twin dwarf Rice brothers
- John Rice (banker) (c, 1832), President of Georgia National Bank in late 1860s
- John Rice (director), screenwriter and director of The Happy Elf
- John Rice (alderman), Chicago alderman
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