TVAC is the abbreviation for The Vehicle Application Centre, a British company.

TVAC may also refer to: Thermal vacuum chamber Tippecanoe Valley Athletic Conference, Indiana, United States Tweed Valley Adventist College, Nimbin, Australia Teaneck Volunteer Ambulance Corps, serving Teaneck, New Jersey, United States Tennessee Valley Athletic Conference, a successor of the Volunteer State Athletic Conference, United States Tennessee-Virginia Athletic Conference, a predecessor of the Appalachian Athletic Conference, United States Thalidomide Victims Association of Canada, founded by survivors of the thalidomide scandal Toronto Video Activist Collective, founded by Jonathan Culp and other videographers