The Vale of Avoca is the name of a deep ravine and of a large viaduct which carries St. Clair Avenue East over the ravine, both within the city of Toronto. When built in the early 1920s, the triple arch bridge served to connect the well-established community of Deer Park with the developing community of Moore Park; it replaced an older structure and straightened the alignment of St. Clair Avenue in the process. The bridge and ravine are named after a poem by Thomas Moore.