A
- A. J. Watson (born 1924), automotive engineer
- Alberta Watson (born 1955), Canadian actress
- Allen Watson (born 1970), American baseball player
- Alonzo Watson (1893–1937), African American Communist; died in the Spanish Civil War
- Angela Watson (born 1975), American actress
- Art Watson (1884–1950), American baseball catcher
- Austin Watson (born 1986), American professional wrestler better known as Consequences Creed
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