John Rea may refer to:

• John Rea (horticulturalist) (died 1681), English garden writer
• John Rea (politician) (1755–1829), United States politician
• John Rea (Florida politician), an early mayor of Tallahassee, Florida

• John Patterson Rea (1840–1900), Minnesota judge
• John Andrew Rea (1848–1941), American journalist and politician
• John Huntington Rea (1909–1968), American actor better known by the stage name John Ridgely
• John Joseph Rea (1921–2013), Northern Irish snooker player, better known as Jackie Rea
• John Rea (composer) (born 1944), Canadian classical music composer
• John Rea (snooker player) (born 1951), Scottish snooker player
• John Rea (musician), Irish hammered dulcimer player
• John Rea (artistic director) (born 1967), American composer and artistic director
• Johnny Rea, motorcycle racer

• Stagmomantis californica
• Stagmomantis floridensis
• Stagmomantis gracilipes
• Stagmomantis limbata
• Stagmomantis montana
• Stagmomantis montana sinaloae
• Stag moose
• Stagnant economy
• Stagnation (disambiguation)
• Stagnation of the Ming Dynasty
• Stagnation of the Soviet Union
• St Agnes Academy
• St. Agnes Academy (Houston)
• St. Agnes Academy (Memphis, Tennessee)
• St. Agnes Academy of Legazpi City
• St. Agnes Academy School
• St. Agnes Cathedral (Kyoto)
• St. Agnes Catholic Church
• St Agnes Catholic High School
• St. Agnes Catholic High School
• St. Agnes Cemetery
• St. Agnes Chapel (Manhattan)
• St. Agnes Chapel (New York City)
• St. Agnes Church (Connecticut)
• St. Agnes Church (disambiguation)