Walter Conrad Klein (May 28, 1904 – March 1, 1980) was bishop of the Episcopal Diocese of Northern Indiana from 1963 to 1971.
He was educated at the High School of Pottsville, Pennsylvania, and then at Lehigh University, from where he graduated with a Bachelor of Arts in 1924.
In 1937, he became vicar of St Augustine's Church in Norristown, Pennsylvania, and also accepted the post of lecturer at the Philadelphia Divinity School.
He resigned the post in 1950 to become a professor of Old Testament Literature and Languages at Seabury-Western Theological Seminary.
[3] On March 13, 1963, during a diocesan special convention, Klein was elected on the third ballot Coadjutor Bishop of Northern Indiana.