Winthrop Astor Chanler (October 14, 1863 – August 24, 1926) was an American sportsman and soldier who fought in the Spanish–American War and World War I. Chanler, a descendant of many prominent American families including the Dudley–Winthrop, Livingston, and Stuyvesant families, and his wife were also prominent in New York society during the Gilded Age.