The MAC Commonwealth, in full Middle Atlantic Conference Commonwealth,[1] is an intercollegiate athletic conference affiliated with the NCAA's Division III.
It is one of the three conferences that operate under the umbrella of the Middle Atlantic Conferences; the others being the MAC Freedom and the Middle Atlantic Conference, a grouping used for some sports that consists of MAC Commonwealth and MAC Freedom schools.
Member institutions are located in Pennsylvania and Maryland.
First, the MAC announced in April 2019 that York College of Pennsylvania would join from the Capital Athletic Conference in 2020.
The MAC Commonwealth currently has eight full members, all are private schools: Enrollment source: [4] The MAC Commonwealth had six former full members, all were private schools: The MAC Commonwealth sponsors intercollegiate athletic competition in men's baseball, men's and women's basketball, women's field hockey, men's golf, men's and women's soccer, women's softball, men's and women's tennis, and women's volleyball.