Definitely not the Chargers.
As of the 2008 season, the Chargers have not won a Super Bowl. They have played in 1 Super Bowl, Super Bowl XXIX, and lost to the San Francisco 49ers by the score of 49-26.
Yes, they defeated the Chargers.
San Francisco 49ers.
No. The Chargers have played in one, Super Bowl XXIX in 1995, and lost to the San Francisco 49ers 49-26. (see the related question for yearly results)
As of the 2008 season, the Chargers last, and only, Super Bowl appearance was January 29, 1995 in Super Bowl XXIX when they lost to the San Francisco 49ers, 49-26.
The San Francisco 49ers defeated the San Diego Chargers 49-26 in Super Bowl 29 (1/29/95).It was the 49ers' 5th Super Bowl win in 5 appearances.
Bengals (twice), Dolphins, Broncos, and Chargers.
San Francisco 49ers
San Diego Chargers 26 ---San Francisco 49ers 49
The San Francisco 49ers beat the San Diego Chargers 49 - 26.
6 by Steve Young of the San Francisco 49ers in Super Bowl XXIX against the San Diego Chargers.
They have never won it. The Chargers appeared in SB 28 but were crushed 49-26 by the San Francisco 49ers.