The Théâtre du Panthéon (French pronunciation: [teɑtʁ dy pɑ̃teɔ̃]) was a theatre building in Paris, at 96 (now 46) rue Saint-Jacques (5th arrondissement).
It was built in 1831 on the remains of the église Saint-Benoît to designs by Alexandre Bourla and commissioned by Éric Bernard, an actor at the Odéon.
Bernard gathered a cast of a dozen actors alongside whom he put on nearly fifty shows in a single year, but such a high turnover took its toll on his health and he passed its management to MM.
In April 1839 Nezel handed the theatre over to one of his troupe, Dubourjal, who took on Aline Duval, who had jumped ship from the théâtre Comte – she was so successful that she was in turn taken on by the manager of the Palais-Royal.
Its last two managers, Blachard and Braux, were also actors – they made one final attempt to revive the theatre's fortunes in September 1843, but in vain.