The Dallas Mavericks.
The 1971-72 Lakers won 33 in a row.
The Lakers
Celtics
most games won in a raw are 3596 to date
Indianapolis Colts (2008-2009) won 23 regular season games in a row. The New England Patriots won the most games in a row, including the playoffs (21). The Canton Bulldogs had 25 games in a row without defeat in 1921-1923. Wrong the philadelphia eagles won like 28 games in 1982
The Boston Celtics have won 17 times. LA Lakers are in second with 16 wins.
Essendon for sure
Yes, the 2006 Miami Heat lost two games in Dallas to the Mavericks, but won the next four in a row to win the championship.
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.
Cleveland Cavaliers