The OYL's membership includes all members of the Ontario Liberal Party who are aged 25 and under.

Many elected officials and partisan with public prominence were active members of the OYL in their youth.

These include: Since the Liberal Party allocates specific number of delegate spots for campus liberal associations at its national convention, key players of the OYL wielded unique influence in the party’s leadership selection as it has the largest number of campus associations under its jurisdiction.

[1][2][3][4] The Paul Martin leadership campaign was particularly notorious for hostile take over of campus liberal associations leading up to the 1990 and 2003 contests.

Each club has an executive, and conducts activities such as community outreach, social events, policy meetings and assists in campaigns during federal or provincial elections.

OYL Summer Fling includes a volunteer appreciation dinner, the annual policy conference and many guest speakers.