Peter A. Lillback is an American theologian who is President and Professor of Historical Theology and Church History at Westminster Theological Seminary, a Presbyterian and Reformed Christian graduate educational institution in Glenside, Pennsylvania.

[1] He also serves as the president of the Providence Forum and a senior editor at Unio cum Christo: An International Journal of Reformed Theology and Life.

Lillback has been ordained in the Orthodox Presbyterian Church (OPC), and holds credentials as teaching elder in the Presbyterian Church in America (PCA).

[2] Lillback holds degrees from Cedarville University (B.A.

[1] He is the author of the biography George Washington’s Sacred Fire, based on primary-source research and scholarship on the life of George Washington.