Merlin Rex Lybbert (31 January 1926 – 6 July 2001) was a general authority of The Church of Jesus Christ of Latter-day Saints (LDS Church) from 1989 to 1994. From 1992 to 1994, Lybbert was the thirteenth general president of the LDS Church Sunday School.Lybbert was born in Cardston, Alberta, Canada. After a short period of service in the Canadian Army near the end of World War II, Lybbert served as a LDS Church missionary in the Eastern States Mission of the church.