Okobi was originally charged with five counts of simple assault after several people confronted him when he argued with his girlfriend at a South Side bar on Aug. 25.
A district judge dismissed four of those charges, but allowed the fifth to go to trial. That charge was reduced Monday to harassment before Okobi pleaded guilty in front of an Allegheny County judge.
Okobi didn't comment. His attorney, Robert DelGreco, acknowledges there was a factual basis for the charge involving the bouncer, who claimed Okobi punched him. DelGreco says Okobi is "satisfied with the favorable outcome."
The 34-year-old played seven NFL seasons, including from 2001 to 2006 with Pittsburgh.