UEFA’s Control, Ethics and Disciplinary Body confirmed the sanction on Monday morning, with the French side fined £4,450 after seats in their section at Celtic Park were broken during the same match on September 12.
A Celtic supporter ran on to the playing surface and aimed a kick at PSG striker Kylian Mbappe during Celtic’s 5-0 defeat at the hands of the French side.
The fine takes Celtic past £150,000 in sanctions for supporter behaviour in the last six years and it is the fourth time they have been fined by UEFA since the start of the 2016-17 season.
The governing body also revealed Basel had been fined £10,700 after fans set off fireworks during their clash with Manchester United at Old Trafford on the same day.