Roberto Valenzuela Elphick was a British-Chilean bishop of the Methodist Episcopal Church, elected in 1936.
He was the son of a British nitrate producer, Donald E. Elphick, and Tomasa Valenzuela, a Chilean Roman Catholic.
Roberto was converted to the Evangelical Church by reading a New Testament given him by a Methodist Sunday School teacher, Mina Fawcett.
Prior to his election to the episcopacy, Roberto served as a pastor, educator, and evangelist.
He was elected bishop in Buenos Aires, and was consecrated to that office in Columbus, Ohio.