The Buffalo Bills.
Buffalo bills
The Buffalo Bills appeared in and lost 4 consecutive Super Bowls.
The Bills lost four consecutive Super Bowls from 1990-93.
Buffalo Bills (4).
The Buffalo Bills
The Buffalo Bills in Super Bowls XXV through XXVIII.
Marv Levy of the Buffalo Bills
The Buffalo Bills, who lost their appearances in Super Bowls XXV, XXVI, XXVII and XXVIII.
The Buffalo Bills are the only team to appear in four consecutive Super Bowls (losing all of them). Dallas and Pittsburgh (and New England after February 1, 2015) have the most appearances (8) followed by Denver (7) and San Francisco (6). The NYG, Green Bay, Washington, Oakland and Miami have 5 each, while Minnesota and Indianapolis round out the group of teams that have appeared 4 or more times.
They played 4 consecutive and lost all of them. They had a chance to win the first one on a missed field goal opportunity by Scott Norwood.
Marv Levy of the Buffalo Bills (Super Bowls XXV,XXVI, XXVII, and XXVIII).