The Green Bay Packers have appeared in five Super Bowls and won four of them. Here are the results (victories in bold):
Three times. Super Bowl I when they beat Kansas City 35-10. Super Bowl II when they beat Oakland 33-14 and Super Bowl XXXI when they beat New England 35-21.
The original answer was prior to Super Bowl XLV. As of February 7, 2011, they have 4 Super Bowl victories.
Note that the first two "Super Bowls" were actually not yet called the Super Bowl; before the 1970 merger between the AFL and the NFL, the two leagues met in a World Championship Game and Super Bowl III in 1969 was the first Super Bowl that carried the "Super Bowl" moniker at the time of the game. The 1966 and 1967 games (won by the Packers) were retroactively designated Super Bowl I and Super Bowl II respectively. The championships won by the Packers are:
NFL Championships (pre-Super Bowl) - 11
1929, 1930, 1931, 1936, 1939, 1944, 1961, 1962, 1965, 1966, 1967
AFL-NFL Super Bowl Championships - 2
1966 (played January 1967 - retroactively designated Super Bowl I) and 1967 (played January 1968 - retroactively designated Super Bowl II)
Super Bowl Championships - 2
1996 (played January 1997 - Super Bowl XXXI - beating the New England Patriots) and 2010 (played February 2011 - Super Bowl XLV - beating the Pittsburgh Steelers)
Marv Fleming played in five Super Bowls and won four. He won with the Green Bay Packers in Super Bowls I and II, lost with the Miami Dolphins in Super Bowl VI, and won with the Dolphins in Super Bowls VII and VIII.
Five. I (won), II (won), XXXI (won), XXXII (lost), and this one, no 45.
Marv Fleming. Fleming was a tight end who won Super Bowls I and II with the Green Bay Packers and Super Bowls VII and VIII with the Miami Dolphins.
Five. He was with the 49ers when they won Super Bowls XXIII and XXIV and the Cowboys when they won Super Bowls XXVII, XXVIII, and XXX.
As of the start of the 2008 season: The Minnesota Vikings and Buffalo Bills have each been to 4 Super Bowls and never won. The Cincinnati Bengals and Philadelphia Eagles have each been to 2 Super Bowls and never won.
4 super bowls
The packers have won 4 Super Bowls.
The Packers have won a total of 4 super bowls.
They have won 4 super bowls including the 2011 one.
the green bay packers won the first two super bowls
packers jets packers raiders packers
Packers won three Bears won one
The Packers have won four Super Bowls (I, II, XXXI, & XLV).
the packers
Packers
The Green Bay Packers.
they have won 4 superbowls and lost 1