The Ogdensburg–Prescott International Bridge is a suspension bridge connecting Ogdensburg, New York in the United States to Johnstown, Ontario in Canada. Designed by Modjeski & Masters and completed in 1960, it has six spans and a main span of 350.75 metres (1,150.8 ft) totaling 2.4 kilometres (1.5 mi) across the Saint Lawrence River and Saint Lawrence Seaway. The bridge is owned and operated by the Ogdensburg Bridge and Port Authority, which also owns and operates Ogdensburg International Airport, the Port of Ogdensburg-Marine Terminal Facility, Commerce Park, the Port of Waddington, a medium-heavy industrial park and two short line railroads. The Ogdensburg Bridge and Port Authority is a New York State public-benefit corporation.

Ogdensburg is a city in St. Lawrence County, New York, United States. The population was 10,436 at the 2019 census. In the late 18th century, European-American settlers named the community after American land owner and developer Samuel Ogden. The city is at the northern border of New York at the mouth of the Oswegatchie River on the south bank of the St. Lawrence River. The only formally designated city in the county, it is located between Massena, New York to the east and Brockville, Ontario to the west.