John Blewett may refer to:

• John P. Blewett (1910–2000), Canadian-American physicist
• John Blewett III (1973–2007), NASCAR driver

• John Blewett House, Fromberg, Montana
• John Blewitt (born 1945), British speed skater

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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