TEAC may refer to:
- TEAC Corporation, a Japanese electronics company
- TEAC Oval, a sports stadium in Port Melbourne, Australia
- Tetraethylammonium chloride, a chemical compound
- Trolox equivalent antioxidant capacity, a measure of antioxidant capacity
- Transfer Emergency Action Contact, a procedure created by ICANN to deal with domain-related disputes
- Thorium Energy Alliance Conference