Thomas J. MacDonald (born June 18, 1966), known as Tommy Mac, is a U.S. carpenter and woodworker and host of the PBS television series Rough Cut – Woodworking with Tommy Mac.
Born in Dorchester, Massachusetts, MacDonald attended the Blue Hills Regional Vocational High School, but dropped out and did not complete his schooling; he later received a GED. He worked as a carpenter for 17 years, but was injured while doing construction work on the Big Dig project in Boston. He later attended the North Bennet Street School in Boston, where he learned woodworking. He started his own business in Canton, Massachusetts, and his work was noticed by Bob Vila, who later invited him to appear on his television series Home Again and on video podcasts for the BobVila.com website. In 2010, MacDonald was signed by WGBH-TV to host his own woodworking instructional program.