Desmond Mason -- the 2001 NBA Slam Dunk Contest champion -- was jailed in Oklahoma on Wednesday, TMZ Sports has confirmed.
An Oklahoma County Detention Center official tells us ... Mason was thrown behind bars on a charge of contempt of court just before noon. He was released several hours later -- at around 9:34 PM -- on a $50,000 bond.
Court documents we obtained showed the booking stemmed from Mason's divorce case with Andrea Mason.