The Saint Croix–Vanceboro Bridge is an international bridge, which connects the communities of St. Croix, New Brunswick in Canada and Vanceboro, Maine in the United States, across the St. Croix River.

The bridge consists of three reinforced concrete slab spans for a total length of 37.82 metres (124.1 ft), which carries a two lane roadway across the river.

Transport Canada estimated the bridge's traffic at 66,635 vehicles annually in 2006.

The Canadian government has at times called this crossing McAdam, named for the larger municipality east of St. Croix.

In the early 1900s, this crossing was located at the adjacent lock structure a short distance to the north.