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.
1 the Cleveland browns have only won a national chanpionship when they beat the Baltimore colts in 1964.... they beat them 27-0
4.The AAFC played four seasons (1946-1949) and the Browns won the championship each season.
4 times. Those times were in 1950, 1954, 1955 and 1964.
Cleveland Browns has already achieved 22 awards from the All-America Football Conference (AAFC) starting from 1946. They had established their great club name when they won 9 consecutive championships.
In 2012, the Cleveland Browns are currently 1-6.
In 2009, the Cleveland Browns had a record of 5-11.
In 2006, the Cleveland Browns had a 4-12 record.
I believe they have won 8 championships 7 with the beast Otto gram and one with bernie kosar. but all to gather the Cleveland browns are 8-3 in the national football league championship and are one of the greatest football teams of all time