The Radu Stanca National Theatre (Romanian: Teatrul Național "Radu Stanca" Sibiu, abbreviation: TNRS) is a theatre in Sibiu, Romania, which began construction in 1788. It is one of the longest-standing theatres in Romania and one of the main structures that have contributed to the rise of the Sibiu International Theatre Festival. It is presently managed by Constantin Chiriac and its repertory includes performances in both Romanian and German.