5. 1961, 1962 and 1965 seasons were NFL Championships. 1966 and 1967 seasons were NFL Championships and Super Bowl Championships.
Pittsburgh Steelers with 6 championships
Most nfl championship won
Pittsburgh is the NFL that has the record of two repeat championships in the NFL. There are six other teams that have own a repeat championship once.
The Detroit Lions have 4 NFL Championships (but none in the Super Bowl era). The Lions have won NFL Championships in 1935, 1952, 1953, and 1957.
Herb Adderley, Forrest Gregg, and Fred "Fuzzy" Thurston each have six NFL championships
3 2 NFL Championships (1945, 1951) 1 Super Bowl Championship (1999)
The Green Bay Packers have the most NFL championships with 9 Championships and 4 Super Bowls. The Green Bay Packers have won more NFL Championships than any other franchise in the history of the NFL. This is not to say that they have won the most Super Bowls. Through the 2010-2011 season the Packers have won 13 NFL Championships followed by the Chicago Bears with 9 and the New York Giants with 7.
Th 49ers have 5 super bowl championships, 5 conference championships and 17 division championships.
The Green Bay Packers. Since their admittance to the NFL in 1921, they've won 13 NFL championships, including 4 Super Bowl titles.
The Cleveland Browns won 4 NFL championships (1950, 1954, 1955, 1964). They also won 4 AAFC championships in 1946, 1947, 1948 and 1949, the AAFC championships are not recognized by the NFL.