How many times have teams repeated as super bowl champs?

The Super Bowl has been won consecutively by 7 teams:

1. Green Bay Packers (1967,1968)
2. Miami Dolphins (1973,1974)
3. Pittsburgh Steelers (1975,1976) (1979,1980)
4. San Francisco 49ers (1989,1990)
5. Dallas Cowboys (1993,1994)
6. Denver Broncos (1998,1999)
7. New England Patriots (2004,2005)

**Only the Steelers have repeated as champions on two separate occasions.