John Samuel Feinberg (born April 2, 1946) is an American theologian, author, and professor of biblical and systematic theology.
He is currently listed as Professor of Biblical and Systematic Theology (retired) at Trinity Evangelical Divinity School in Deerfield, Illinois.
His brother Paul David (1938 - 2004) also taught Systematic Theology and Philosophy of Religion at Trinity Evangelical Divinity School for thirty years.
In his early career, Feinberg served as a missionary in Los Angeles on staff for the American Board of Missions to the Jews.
Building on the Foundations of Evangelical Theology: Essays in Honor of John S. Feinberg includes contributions from Kevin Vanhoozer, Bruce A. Ware, and Walter Kaiser Jr.