GPAC may refer to Geelong Arts Centre (formerly Geelong Performing Arts Centre), an arts centre in Geelong, Victoria, Australia General purpose analog computer, a mathematical model of analog computers GPAC Project on Advanced Content, an open source multimedia framework for research and academic purposes Great Plains Athletic Conference, a college athletic conference in the United States See also GCAP (disambiguation) GenderPAC, a gay/lesbian/transgender political action committee based in Washington, D.C.