Arthur A. Coia (born March 21, 1943) is a former American labor union leader.
Born in Providence, Rhode Island, Coia's father, Arthur E. Coia, was a prominent activist in the Laborers' International Union of North America (LIUNA). The younger Coia studied at La Salle Academy, Providence College, and Boston University School of Law and practiced as a lawyer.
Coia also became business manager of the Rhode Island Laborers' District Council. In 1981, he was charged, alongside his father, with conspiracy in dealing with union funds. The charges were dropped, and his union career progressed; he became manager of LIUNA's New England and Eastern Canada region, and then in 1989 succeeded his father as secretary-treasurer of the union.
In 1993, Coia was elected as president of the LIUNA. In the role, he was a supporter of Bill Clinton. In addition, he served as a vice-president of the AFL-CIO. While president of the union, he was noted for his collection of luxury cars. He suffered with Hodgkin's disease and prostate cancer, recovering from both. He was accused of ties to organized crime, but a three-year investigation cleared him of the charge. However, he was fined $100,000 for using a union supplier to facilitate purchasing a Ferrari.
Coia retired from his union posts in 1999. In 2001, he founded the Arthur Coia Group, a management and labor relations consultancy.