Gasport is a hamlet (and census-designated place) located in the Town of Royalton in Niagara County, New York, United States.

The name is derived from observed natural gas and the historic Erie Canal port at that location.

On May 18, 1826, a geological expedition, led by Amos Eaton and physicist Joseph Henry of the Rensselaerian School (now Rensselaer Polytechnic Institute) through the western part of New York state aboard the canal boat "LaFayette," encountered flammable coal gas rising from a spring.

On the return voyage, May 26, they passed through the settlement again, and saw that the name was already appearing on signboards.

The hamlet of Gasport is located on New York State Route 31 (Rochester Road) and the Erie Canal.