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Racin Gardner (born 1972), American auto racing driver •
Randy Gardner (disambiguation) •
Ricardo Gardner (born 1978), Jamaican footballer •
Rich Gardner (born 1981), American football player •
Richard Gardner (disambiguation) •
Rita Gardner (1934–2022), American actress •
Rob Gardner (musician), American rock drummer •
Rob Gardner (baseball) (born 1944), baseball player •
Robert Gardner (anthropologist) (1925–2014), film director •
Robert Gardner (footballer) (died 1887), Scottish footballer •
Rod Gardner (born 1977), American football wide receiver •
Rod Gardner (politician) (born 1948), Canadian politician •
Ronnie Lee Gardner (1961–2010), American criminal executed by firing squad in Utah •
Ross Gardner (born 1985), English footballer •
Roy Gardner (bank robber) (1884–1940), American outlaw • Sir
Roy Gardner (businessman) (born 1945), Chairman of Manchester United •
Rua Gardner (1901–1972), New Zealand teacher and principal •
Rulon Gardner (born 1971), American Greco-Roman wrestler == S ==