Richard Arnold may refer to:
- Richard Arnold (general) (1828–1882), Major General in the American Civil War
- Richard R. Arnold (born 1963), American astronaut
- Richard S. Arnold (1936–2004), Judge of U.S. Court of Appeals for the Eighth Circuit
- Dr. Richard Arnold, Mayor of Savannah from 1842 to 1843, 1851 to 1852, and 1859 to 1860
- Richard Arnold (TV presenter), British TV presenter
- William Richard Arnold (1881–1957), Welsh rugby player
- Richard Arnold (agitator) (died 1647), English soldier executed after the Corkbush Field mutiny
- Rich Arnold, Iowa State Representative, born 1945
|
