TREC

TREC may refer to:
 * Techniques de Randonnée Équestre de Compétition or Trec, an equestrian discipline
 * Text Retrieval Conference, workshops co-sponsored by the National Institute of Standards and Technology (NIST) and the U.S. Department of Defense
 * Texas Real Estate Commission, the state agency that governs real estate practices in Texas
 * Trans-Mediterranean Renewable Energy Cooperation
 * Toronto Renewable Energy Co-operative, creators of the WindShare wind power co-operative in Toronto, Ontario
 * T-cell receptor excision circles
 * Trading Right Entitlement Certificate as defined in the Demutualization Act in Bangladesh