The UCLA Bruins won 7 consecutive championships from 1967-1973
i belive that wil be Manchester united.
UCLA has won the most consecutive NCAA Division I Men's basketball championships, but Kenyon Univ has the most consecutive championships in any sport with 30 in DIII Swimming and Diving. Hobart College has the most consecutive team championships in any sport with 12 in D III Lacrosse.
Jimmie Johnson has won the most championships in a row with 5 consecutive wins. 2006-2010.
The Los Angeles Rams won 7 consecutive division championships, from 1973 to 1979
The Boston Celtics' streak of 8 consecutive NBA championships is the longest streak of consecutive championships in U.S. professional sports history
The Boston Celtics
As far as I know the Boston Celtics with 8 consecutive nba championships as well as 11 nba championships within same 13 year period.
The most national championships in any one sport:31 NCAA national titles - Kenyon College - Men's Swimming and Diving.The most consecutive national championships in any one sport:31 consecutive national championships - 1980 thru 2010 - by Kenyon Collegein Men's Swimming and Diving