The Dallas Cowboys have lost three of their eight Super Bowl appearances:
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The Dallas Cowboys won 5 Super Bowls and lost 3.
The Dallas Cowboys lost Super Bowl V to the Baltimore Colts and Super Bowls X and XIII to the Pittsburgh Steelers.
As of the 2008 season, Dallas has won 5 Super Bowls and Washington has won 3 Super Bowls.
The Cowboys have been in a record eight Super Bowls and have lost three times:Super Bowl V (1-17-71) -- Baltimore Colts 16, Dallas 13.Super Bowl X (1-18-76) -- Pittsburgh Steelers 21, Dallas 17.Super Bowl XIII (1-21-79) -- Pittsburgh 35, Dallas 31.
Dallas, Miami, and New England lost 3. Buffalo, Denver and Minnesota have lost 4.
The Cowboys have won 5 Super Bowls (Super Bowls VI, XII, XXVII, XXVIII, and XXX), and have lost three.
The three Super Bowls the Miami Dolphins have lost are Super Bowls VI(6) to the Dallas Cowboys, Super Bowl XVII(17) to the Washington Redskins, and Super Bowl XIX(19) to the San Francisco 49ers.
No team has ever lost 5 Super Bowls. The Buffalo Bill lost 4 consecutive Super Bowls from 1991 - 1994.
One. Cowher was the head coach of the Pittsburgh Steelers who lost to the Dallas Cowboys in Super Bowl XXX.
Five.
The Bills have lost 4 Super Bowls but to only 3 different teams: The Bills lost Super Bowl 25 to the New York Giants. The Bills lost Super Bowl 26 to the Washington Redskins. The Bills lost Super Bowl 27 to the Dallas Cowboys . The Bills lost Super Bowl 28 to the Dallas Cowboys.