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- Ralph Ellis (artist) (1885–1963), English painter and designer
- Ray Ellis (1923–2008), American record producer and composer
- Ray Ellis (American football) (born 1959), former American football player
- Raymond Ellis (1923–1994), British Labour Party politician
- Richard Ellis (astronomer) (born 1950), Caltech professor and director of Palomar Observatory.
- Richard Ellis (biologist), marine biologist at the American Museum of Natural History
- Richard Ellis (politician) (1781–1846), 19th century Texas legislator
- Rick Ellis (disambiguation), several people
- Robert Leslie Ellis (1817–1859), English polymath
- Robin Ellis, several people
- Robinson Ellis (1834–1913), English classical scholar
- Rod Ellis, linguist
- Rodney Ellis (born 1954), African-American politician from Texas
- Romallis Ellis (born 1965), former American boxer
- Ron Ellis (born 1945), retired Canadian ice hockey player
- Ross Ellis (1915–1983), Canadian politician
- Rowland Ellis (1650–1731), Welsh Quaker
- Rowland Ellis (bishop) (1841–1911), Welsh clergyman
- Royston Ellis (born 1941), British writer
- Ruth Ellis (1926–1955), last woman to be executed in the UK
- Ruth Ellis (activist) (1899–2000), American gay rights activist
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