Westerly can refer to:
Westerly, Rhode Island, a town in the United States,
Westerly, West Virginia,
The Westerlies, the prevailing winds in the middle latitudes,
Westerly (Australian literary magazine), a literary magazine from the University of Western Australia,
A prevailing wind occurring at Perth, Western Australia, also known as the Fremantle Doctor,
Westerly Marine Construction Ltd pre-eminent British yacht builders from 1963 to 2000.