William Aylmer Winter (March 22, 1872 - March 12, 1952) was a farmer and a Democratic Mississippi state legislator from Grenada County in the early-to-mid 20th century. He was also the father of the Mississippi governor William Forrest Winter.
Winter was elected to represent Grenada County in the Mississippi House of Representatives as a Democrat for the first time in 1915 for the 1916-1920 term.[2][4] He was re-elected in 1919 and served in the 1920-1924 term.[3][1][4] He then was in the Mississippi Senate, representing the 28th district, from 1924 to 1928, from 1932 to 1936, and from 1940 to 1944.[4][5] Finally, he was a member of the Mississippi House of Representatives, representing Montgomery and Grenada counties as a floater representative.[4]
Winter was a Presbyterian.[3] He married schoolteacher Inez Parker on March 2, 1921, in Memphis, Tennessee.[3][5] Their son and only child, William Forrest Winter, became the governor of Mississippi from 1980 to 1984.[7][5]