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- Raby Howell (1869–1937), British footballer
- Ralph Howell (1923–2008), British Conservative politician
- Red Howell (1909–1950), American baseball player
- Richard Howell (1754–1802), American politician; governor of New Jersey from 1794 to 1802
- Richard Howell (comics), American comic book creator
- Richard Howell (cricketer) (born 1982), English cricketer
- Richard Howell (swimmer) (1903–1967), American swimmer
- Robert B. Howell (1864–1933), American Republican politician
- Rod Howell (born 1975), American dancer
- Roger Howell, Jr. (1936–1989), American professor
- Roland Howell (1892–1973), American baseball player
- Ron Howell (1935–1992), Canadian football player
- Ron Howell (footballer) (born 1949), English footballer
- Ross Howell (born 1979), Australian ice hockey player
- Roy Howell (born 1953), American baseball player
- Russ Howell, American skateboarder
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