Guillaume Ouellet (born October 3, 1986) is a Canadian para-athlete competing in T13 middle and long-distance races.

In 2013 he was selected to represent Canada at the 2013 World Championships in Lyon in the 1500 metres race, finishing fourth.

[2] Two years later he was back in the Canadian team to compete at his second World Championships, this time in Doha.

[2] At the 2017 World Para Athletics Championships held in London, United Kingdom he won the bronze medal in the men's 5000 metres T13 event.

This biographical article relating to Canadian athletics and track and field is a stub.