East Bayfront LRT is a proposed Toronto streetcar line that would serve the East Bayfront and Port Lands areas in Toronto, Ontario, Canada. It would run from Union station under Bay Street and along Queens Quay and Cherry Street to a new Polson Loop near the intersection of Cherry and Polson Streets in the Port Lands. It would complement the existing 509 Harbourfront service which connects Union Station to Queens Quay west of Bay Street. Longer term plans are to extend the East Bayfront line from Cherry and Commissioners Streets to the proposed East Harbour station along the planned Ontario Line.