National Hall is a former venue in Philadelphia, Pennsylvania, located at 1222–24 Market Street, between Twelfth and Thirteenth Streets. It was one of the most popular venues in the city, site of concerts, lectures, meetings, and political speeches. It opened on January 8, 1856, with a "grand operatic concert".[1] While it existed, from 1856 to 1873, it was the main venue in Philadelphia for speakers for abolitionism and other progressive causes.