Kieth W. Merrill (born May 22, 1940)[2] is an American filmmaker who has worked as a writer, director, and producer in the film industry since 1967. He is a member of the Academy of Motion Picture Arts and Sciences and the Directors Guild of America, and received an Academy Award for The Great American Cowboy (1973) and a nomination for Amazon (1997). He is a founding partner of Odyssey, which pioneered IMAX-format film technology. He is also a founding member of Audience Alliance Motion Picture Studios, a production company committed to highly entertaining motion pictures that embrace virtues and values. AAMPS is a growing broad based membership organization giving "card carrying members" the opportunity to weigh in on scripts and go behind the scenes of AAMPS motion pictures.

Merrill is the son of the Utah artist and landscape architect, David Merrill and playwright and actress, Leola Green Merrill. He was born and raised in Farmington, Utah, a small, pioneer-founded town 20 minutes north of Salt Lake City. As an active member of The Church of Jesus Christ of Latter-day Saints (or LDS Church), he made the decision to serve as a missionary for the Church and was called to Denmark where he served for two and a half years.

Merrill graduated with a BA from Brigham Young University (BYU) in 1967. He is married to the former Dagny Johnson. They have eight children and reside in Northern California.

In addition to his mainstream "Hollywood" projects, Merrill was commissioned by the First Presidency of the LDS Church to produce the films Legacy and The Testaments for the state of the art 70 mm Legacy Theater at Temple Square in Salt Lake City, Utah.

Merrill has been a member of the Board of Trustees of Southern Virginia University and president of the BYU Alumni Association. He received the Franklin S. Harris Fine Arts Award from BYU when he delivered the commencement address to the BYU College of Fine Arts and Communications in 2007.