HASC may refer to:
- Hebrew Academy for Special Children, in New York City
- HASC Concert, an annual Jewish music concert which is a fundraiser for the Hebrew Academy for Special Children
- Hierarchical administrative subdivision codes, codes to represent names of country subdivisions, such as states, province, regions
- Hindustan Aeronautics Limited S.C. (Hindustan Aeronautics Sporting Club) a football team in India
- Home Affairs Select Committee, a Committee of the House of Commons in the Parliament of the United Kingdom
- House Armed Services Committee, a standing committee of the United States House of Representatives