Frank Davis Hammond (October 12, 1921 – March 17, 2005) was an American author of Christian books, particularly on deliverance ministry.
Hammond was an alumnus of Baylor University and Southwestern Baptist Theological Seminary.
Hammond taught that ethical issues such as resentment and gossiping – together with issues such as compulsive eating, forgetfulness, sexual problems, and mental illness – may be caused by demons requiring deliverance ministry, and that such individuals may require such deliverance.
[1][2][3] He and his wife Ida Mae have been called "perhaps the most influential practitioners of deliverance ministry.
"[2] Their 1973 book Pigs in the Parlor: A Practical Guide to Deliverance is one of the most influential on the topic,[2][3] and has sold over a million copies.