Born in Paris and raised at PSG, Coman scored the only goal when Bayern beat the French side in the 2020 Champions League final and he was again the sole scorer as the German champions put one foot into the quarter-finals.
PSG, who have now lost five games in all competitions in 2023, held firm in the opening half but were eventually subdued and failed to fight back despite finishing the game with Kylian Mbappe, Neymar and Lionel Messi all on the pitch.
Christophe Galtier's side now face the prospect of a second elimination in a row in the last 16 on March 8 in Munich, although Mbappe's high-octane display as a second-half substitute will have given them hope.
The stadium came to the boil when Mbappe replaced Carlos Soler, raising hopes that the France forward would bail out PSG on his comeback from a two-week injury layoff.