Alpha Phi Omega Trillium is the electronic mailing list of Alpha Phi Omega International Service Fraternity and Sorority alumni residing in the Province of Ontario and affiliates. The list is open to all alumni from the US, the Philippines and to all APO alumni from all over the world.

Trillium is official flower of the Province of Ontario, Canada and it is the Provincial Logo which represents all that of the Province of Ontario. The egroup adopts Trillium as its egroup name.

The Alpha Phi Omega Trillium egroup aims to exemplify the 3 cardinal principles of the fraternity which are: Leadership, Friendship and Service to all humanity in the Province of Ontario as well as the whole of Canada.