Sean O'Haire Dead -- Former WCW, WWE Star Commits Suicide By Hanging

12:50 PM PT -- According to local police, O'Haire committed suicide. He was found in his bedroom beside his bed, with a red rope tied around his neck and connected to the bedpost. His body was discovered by his father, who then called 911.

Former WCW and WWE wrestler Sean O'Haire was found dead Tuesday at his home in South Carolina ... TMZ has learned.

The coroner in Spartanburg, SC tells TMZ a cause of death is unknown at this time, but no foul play is suspected. They are awaiting toxicology reports that might shed light on things.

O'Haire (whose real name was just Sean Haire) made his debut with the WCW in 2000 and along with partner Chuck Palumbo, was the final WCW tag team champions when the organization folded.

Once in the WWE, he was Rowdy Roddy Piper's protege, but when Piper left in 2003 ... O'Haire fizzled out and eventually left the WWE in 2004.

He eventually transitioned into kickboxing and MMA before becoming a hair stylist.