Dennis Rodman has checked into rehab ... again ... in the wake of a drunk driving arrest, his rep confirms.
TMZ Sports broke the story ... Rodman was busted in Newport Beach, CA over the weekend -- after cops say he was swerving all over the road and blasting loud music while intoxicated.
We talked to Rodman's rep, Darren Prince -- who says The Worm has entered Turning Point Rehabilitation Center in Paterson, New Jersey to deal with his alcohol issues.
Rodman has been to rehab before -- once in 2014 ... and he was also featured on 'Celebrity Rehab' with Dr. Drew back in 2010.