William Culbertson III was as an American pastor and bishop of the Reformed Episcopal Church who served as the dean of Moody Bible Institute in 1948.
Culbertson was elected bishop of the New York City and Philadelphia Synod of his denomination in 1937 and served in that position until he assumed the duties as dean of Moody Bible Institute in Chicago, Illinois, in 1942. Six years later, upon the death of Will H. Houghton, the trustees elected him to be the school's next president. Culbertson first served M.B.I. as dean in 1942. 
