Don Carlos Smith (March 25, 1816 – August 7, 1841) was the youngest brother of Joseph Smith and a leader, missionary, and periodical editor in the early days of the Latter Day Saint movement. Smith was born in Norwich, Vermont, on March 25, 1816, the seventh son of Joseph Smith Sr. and Lucy Mack Smith. As an adolescent, Smith was an early convert to the Church of Christ that was established by his brother Joseph in 1830. Don Carlos was baptized on June 9 of that year in Seneca Lake.