Ottawa Police and Paramedics were called to Mooney's Bay on Sunday night around 10:40 p.m. after a 18-year-old was stabbed.
Police say he was stabbed in the calf during an altercation with another man.
Paramedics treated the teen on scene and took him to hospital in stable condition.
There is no suspect as the victim refused to cooperate with police.
Mooney's Bay played host to the Dragonboat Festival over the weekend, which wrapped up with a concert on Sunday night, police are not confirming if the incident is related to those events.