Leon Lamb Morris was an Australian New Testament scholar.

He was born in Lithgow, New South Wales, Morris was ordained to the Anglican ministry in 1938. He received his Ph.D. at the University of Cambridge in England on the subject which became his first major book, The Apostolic Preaching of the Cross. He served as Warden of Tyndale House, Cambridge (1960-64); Principal of Ridley College in Melbourne (1964-1979), Australia (where they have named a library in his honour); and Visiting Professor of New Testament at Trinity Evangelical Divinity School.

He published several theological works and commentaries on the Bible, notable among which are The Apostolic Preaching of the Cross, The Atonement: Its Meaning and Significance, New Testament Theology, and The Gospel According to John (part of the New International Commentary on the New Testament series), The Gospel According to Matthew (IVP / Eerdmans, 1992), The Epistle to the Romans (IVP / Eerdmans, 1988), and The Book of Revelation: An Introduction and Commentary (Rev. ed., IVP / Eerdmans, 1987).