Sir James Spearman Winter, (January 1, 1845 – October 6, 1911) was a Newfoundland politician who served as Premier of Newfoundland from 1897 to 1900.

Winter was born on January 1, 1845 in Lamaline, Newfoundland to James M. Winter, a customs officer from St. John's, and Harriet Winter (née Pitman). After studying in the Protestant schools in his father's hometown, he began work as a mercantile clerk in 1859 for lumber merchants William and Henry Thomas. In 1861, he started his career in law by articling in the office of then-Premier Hugh Hoyles. He was called to the Newfoundland bar in 1866, subsequently starting an independent legal practice. He eventually entered into a partnership with Donald Morison in 1881.