The 1990–91 ECHL season was the third season of the ECHL. In 1990, the league welcomed three new franchises: Cincinnati Cyclones, Louisville Icehawks, and Richmond Renegades. The Virginia Lancers franchise was renamed the Roanoke Valley Rebels. The eleven teams played 64 games in the schedule. The Knoxville Cherokees finished first overall in the regular season. The Hampton Roads Admirals won their first Riley Cup championship.

Regular season

Note: GP = Games played, W = Wins, L = Losses, T = Ties, Pts = Points, GF = Goals for, GA = Goals against, Green shade = Clinched playoff spot, Blue shade = Clinched division

Riley Cup playoffs

ECHL awards

All-Star Teams

The 1991 ECHL All-Star Team was announced on March 9, 1991. At this time, the ECHL did not hold an All-Star Game and would not hold their first such game until 1993.

First Team

Second Team