The answer is Arsenal FC
i think it is Manchester uniteds 56 games unbeaten spanning 40 years
Nantes is the Ligue 1 club that has had the longest unbeaten record in one season.
It is unknown which team has the longest unbeaten run in all competitions. Arsenal have the longest English league run with 49 games unbeaten, which included the entire 2003/04 Barclay's Premier League season unbeaten. Chelsea have the longest unbeaten home run in the league with 86 games. Liverpool have the longest unbeaten home run in all competitions with 85 games. The longest unbeaten League run in English Senior Football is held by AFC Wimbledon who went 78 games unbeaten from 22 Feb 2003 to 4 Dec 2004. This included a complete league season undefeated. Steaua Bucharest went 104 matches unbeaten between 1986 and 1989
The longest unbeaten run for Newcastle United Football Club is 11 games. This streak took place between August 15, 1992, and December 24, 1992.
Manchester United at 20 games (still going as of 24 Feb 2009), followed by Ajax FC and Bayern Munich both at 19 games.
Inverness Caledonian Thistle Football Club.
It is a Scottish football club.
Celtic or rangers. They are the best teams in Scotland.
chelsea of winning 21 games concecutively