William Blair Roberts (December 10, 1881 - April 25, 1964) was a bishop in The Episcopal Church, serving in South Dakota.
He was educated at the public school of Hartford, Connecticut, and then studied at Trinity College, graduating with a Bachelor of Arts in 1905, and being awarded a Doctor of Divinity in 1923.
He also served as a chaplain in the American Expeditionary Forces between August 1918 and June 1919.
[4] On December 6, 1922, he was consecrated suffragan bishop of South Dakota, in Calvary Cathedral, Sioux Falls.
[5] On September 29, 1931, he was elected Bishop of South Dakota, remained so until his retirement on January 1, 1954.