Smitty is a nickname derived from the surname Smith. In the works of Harry Turtledove, Smitty may refer to:
- Smitty (Disunited States), a soldier of Virginia in The Disunited States of America.
- Smitty (Iron Heart), George Patton's driver in The Man With the Iron Heart.
- Smitty (Detina), a character in The War Between the Provinces.
- Smitty (Worldwar), a minor character in the Worldwar series.
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