Suda alleges she was dismissed without basis and claims a "corrupt and unethical faction" of the museum's Board of Trustees opposed her efforts to modernize the institution.
READ MORE: Philadelphia Art Museum CEO Sasha Suda terminated following emergency board meeting
She is seeking two years' worth of severance pay and additional damages, and has requested a jury trial.
In response to the lawsuit, a museum spokesperson told Action News the claims are "without merit."
Suda had been in the third year of a five-year contract and led a change campaign that included rebranding the museum and unveiling a new logo.