Peter E. Gillquist, American priest and author (b. 1938)
Peter Edward Gillquist (July 13, 1938 – July 1, 2012) was an American archpriest in the Antiochian Orthodox Christian Archdiocese of North America and retired chairman of the archdiocese's department of missions and evangelism. He was chairman of Conciliar Press (Ben Lomond, California) and the author of numerous books, including Love Is Now, The Physical Side of Being Spiritual and Becoming Orthodox. He also served as project director of the Orthodox Study Bible and from 1997 served as the National Chaplain of the Sigma Alpha Epsilon fraternity.

Gillquist and his wife, Marilyn (married in 1960), were long-term residents of Santa Barbara, California, but in June 2009 they moved to Bloomington, Indiana.