​Three Rivers Advertising Specialty Association, TRASA, is a promotional products association established in 1992 and located in Pittsburgh, PA.

TRASA serves the surrounding tri-state area (western Pennsylvania and West Virginia) promotional marketing professionals providing them with educational and networking opportunities, business-building resources, and four annual trade shows in Pittsburgh, Altoona and Erie. TRASA membership is made up of distributors, suppliers and multi-line representatives in the promotional products industry. TRASA serves nearly 225 members across the United States.

TRASA is affiliated with the Promotional Products Association International (PPAI) and SAGE.