O.J. Simpson was booted from the Cosmopolitan Hotel in Las Vegas Wednesday night after allegedly getting wasted and then being extremely unruly.

Simpson had been frequenting bars at the hotel since his release from prison. Hotel staff tells TMZ ... at around midnight last night, Simpson was drunk and became disruptive at the Clique bar. We're told Simpson was angry at hotel staff and glasses broke at the bar.

Check out the pic below of Simpson strolling through the hotel Wednesday night.