Lang Music Building is a modern style building dedicated entirely to the humanities, built at Swarthmore College, Pennsylvania . It designed by Romaldo Giurgola in 1973 as an university building and become an award-winning building on Swarthmore College.
It is home to the Music and Dance Department and the home to the Daniel Underhill Music Library, classrooms, practice and rehearsal rooms, and an exhibition area. It also contains an auditorium seating nearly 400 to providing an expansive view into the Crum Woods. It is the central facility for the Music Department and for musical activities at the College.