Theatre Development Fund (TDF) is a nonprofit organization based in New York City that aims to support and promote the performing arts, particularly theatre. Founded in 1968, TDF provides various services, including discounted tickets for Broadway and off-Broadway shows, making theatre more accessible to a wider audience. In addition to ticket discounts, TDF also offers programs that support theatre education and community engagement. They work to foster a love for the arts by providing resources for students and educators, ensuring that the magic of live performance reaches diverse communities across the region.