William Green Millsaps

William Green Millsaps (April 2, 1831 – February 25, 1887) was a preacher who served in the Mississippi legislature from 1875 to 1876.

He was born April 2, 1831, around the area of Pleasant Valley, Copiah County, Mississippi, to devout Methodist Episcopal Church members. Reuben Webster Millsaps, founder of Millsaps College, was his brother. Although he graduated at the top of the class he did not obtain a first class honors as he had only attended the college for a single year.

He was elected to serve in the Mississippi House of Representatives for the 1875–1876 term representing Jefferson County, Mississippi, as a Republican.

The Millsaps-Wilson Library at Millsaps College in Jackson, Mississippi, includes his full library that was donated by his granddaughter Miss Butterfield.

He died February 25, 1887, in Cincinnati, where he was seeking medical treatment.