The Olney-Margolies Athletic Center (OMAC) was dedicated in 1981. Named for its two principal donors, members of the Class of 1936, Joseph Olney and Moe Price Margolies, it houses offices, locker and shower rooms, athletic training support facilities, the athletic equipment room, a 200-meter indoor track and multiple intramural basketball courts.
In the summer of 2017, renovations to the OMAC as part of the Berylson Football and Training Complex project provided Brown with an updated football locker room as well as improved areas for athletic training and equipment services. As part of the second phase the project in the summer of 2018, renovations were made to the football office space, including the Paul K. Sloan ’97 Football Team Room, which provides seating for over 125 people and has the ability to split in two.
Housed within the OMAC are the main offices for several Brown athletic teams, including fencing, field hockey, football, women's lacrosse, skiing, and softball.