What was the highest scoring quarter in NBA?

Answer 1

it was 54 in 3rd quarter in Denver Nuggets vs Indiana Pacers in november 10 2010.

Not so. All I can guess is that either someone talking about that game on TV either spoke incorrectly and mentioned it as the record or maybe you misheard them saying something along the lines of "...most points in any NBA quarter since..."

The actual record was set by the Buffalo Braves (forerunner to the San Diego, and eventually Los Angeles, Clippers) in the fourth quarter of their October 20, 1972 meeting against the Celtics. They were getting thoroughly destroyed through three quarters as they trailed the Celtics 103-60 entering the fourth.

Despite annihilating the Celtics 58-23 in the final frame, they still lost by 8, 126-118.

http://www.Basketball-reference.com/boxscores/197210200BOS.html

Answer 2

2005 NBLs allstar game 185-165 aussies won.

Answer 3

most recent Carmelo Anthony 33 points in the 3rd quarter last year against the Minnesota Timberwolves.