The Flushing River, also known as Flushing Creek, is a waterway that flows northward through the borough of Queens in New York City, mostly within Flushing Meadows–Corona Park, emptying into the Flushing Bay and the East River. The river runs through a valley that may have been a larger riverbed before the last Ice Age, and it divides Queens into western and eastern halves. Until the 20th century, the Flushing Creek was fed by three tributaries: Mill Creek and Kissena Creek on the eastern bank, and Horse Brook on the western bank.

Queens is a borough of New York City, coextensive with Queens County, in the U.S. state of New York. Located at the western end of Long Island, it is the largest of the five New York City boroughs by area. It is bordered by the borough of Brooklyn and by Nassau County to its east, and shares maritime borders with the boroughs of Manhattan, the Bronx, and Staten Island, as well as with New Jersey. Queens is the most linguistically and ethnically diverse place on Earth.