The Ontario Student Debating Union is a charitable organization that hosts and promotes competitive debate for Ontario students up to Grade 12. OSDU organizes a Provincial Championship every spring as well as a variety of regional debates and workshops. It also works with the Canadian Student Debating Federation and helps select students to represent Ontario at national and international debating events. (Read more)

News, Opportunities & Events 

Check the OSDU website regularly for the latest debating news, opportunities and events in Ontario, including national qualification opportunities. Better yet, subscribe to the OSDU mailing list below and follow us on social media. Be the first to know about upcoming tournaments, learning opportunities and debate workshops so you don't miss out!

Upcoming events: 


Follow OSDU on social media: 

Twitter - @OSDUdebating
Instagram - OSDUDebating
Facebook - Ontario Student Debating Union