(October 17, 1788 – February 23, 1851) was an early leader in the Latter Day Saint movement and an editor of Latter Day Saints’ Messenger and Advocate, an early Latter Day Saint periodical. He was the eldest brother of Oliver Cowdery, who with Joseph Smith was the primary initiator of the Latter Day Saint movement.

In 1833, largely as a result of his brother Oliver’s influence, Warren Cowdery became a member of the Church of Christ. On November 25, 1834, Joseph Smith received a revelation that specified that Warren Cowdery should be appointed the presiding high priest of the church for Freedom and the surrounding areas.

Cowdery was involved with Warren Parrish in the formation of a rival Latter Day Saint sect in Kirtland, which they named the «Church of Christ». While the church briefly gained ownership of the Kirtland Temple, internal division led to the dissolution of the church after only a few months of existence. Cowdery lived the rest of his life in Kirtland and never became involved with any other Latter Day Saint group. He and his wife were the parents of 11 children.