Eight.
The Dallas Cowboys have lost 3 super bowls.
The Dallas Cowboys have won five Super Bowls in the eight that they have been in.
The Dallas Cowboys played in eight Super Bowls, winning five.
The Dallas Cowboys won 5 Super Bowls and lost 3.
They have been to 8 Super Bowls and have won 5.
5
3 Super Bowls XXVII, XXVIII & XXX
Cowboys have been in 8, the 49ers 5, the Steelers (including 2009) have been to 7.
The Dallas Cowboys have won 5 super bowl win
2 - Super Bowls VI and XII.
5