Williamson is a town on the south shore of Lake Ontario in the northwest part of Wayne County, New York, United States. The population was 6,984 at the time of the 2010 census. The town is named after Charles Williamson, a land agent of the Pulteney Estate. Its primary ZIP code is 14589, and telephone exchanges 589 and 904 in area code 315.

Wayne County is a county in the U.S. state of New York. As of the 2020 Census, the population was 91,283. The county seat is Lyons. The name honors General Anthony Wayne, an American Revolutionary War hero and American statesman. The county is part of the Finger Lakes region of the state.