The team known as the Cardinals, which has been in existence since 1920, and has been located in Chicago, St. Louis, and Arizona; has the most losses all time with 691. The Detroit Lions are second all time with 593 losses.
The team with the most losses in NFL history is the Tampa Bay Buccaneers.
Arizona Cardinals- 680 losses
The Tampa Bay Buccaneers hold the title for being the NFL team with the most losses in history.
Over the 76-77 season, the Tampa Bay Buccaneers lost 26 consectutive loses
Cinncinnati bengals
Oakland Raiders
well it would be the Oakland raiders they are the worst team in history
The Green Bay Packers.
University of miami
2009 Oakland raiders
the Dallas Cowboys have been in the most superbowls in nfl history. However the Pittsburgh steelers have won the most superbowls in nfl history as of 2008.
The Chicago Bears have the most victories in NFL history. They are 744-568-42.