Trenton is a community in Southern Ontario in the municipality of Quinte West, Ontario, Canada. Located on the Bay of Quinte, it is the main population center in Quinte West, and is one of the largest freestanding unincorporated communities in the province.
Trenton is the starting point for the Trent-Severn Waterway, which continues northwest to Peterborough and eventually Port Severn on Georgian Bay.