John Johnson, Sr. (April 11, 1778 – July 30, 1843) was an early leader in the Latter Day Saint movement in Ohio.
Johnson was born in Chesterfield, New Hampshire. He became a farmer and farmed near Pomfret, Vermont. In 1818, he moved to Hiram, Ohio, where he purchased land and became a prominent member of the Methodist Church. He was married to Mary Elsa Jacobs; they were the parents of nine children, including Luke and Lyman. Their daughter Marinda married Orson Hyde.
In early 1831, Johnson's sons Luke and Lyman were baptized into the Church of Christ, which had been founded by Joseph Smith the previous year. After their sons were baptized, Johnson and his wife travelled with Methodist preacher Ezra Booth to Kirtland, Ohio to learn more about the church. While in Kirtland, Johnson's wife reported that she experienced a miraculous healing at the hands of Smith:
"Elsa Johnson had been afflicted for many years with a rheumatic arm. She experienced so much pain and difficulty in movement that for two years she hadn’t been able to raise her hand to her head. As the Johnsons and others from the Hiram area visited with Joseph Smith in the Newel K. Whitney home, they discussed the gifts of the Spirit as held in the early Church. Someone asked whether God had given power to men today to heal people like Elsa Johnson. After the conversation had turned to another subject, the Prophet [Smith] walked up to Elsa and said, 'Woman, in the name of the Lord Jesus Christ I command thee to be whole,' and then he walked out of the room. Elsa was instantly healed, and the next day she did her washing 'without difficulty or pain.'"
As a result, Johnson, his wife, and Booth were converted to Mormonism and became members of the Church of Christ. Johnson was baptized by Smith. Johnson invited Smith and his wife and children to live at the Johnson farm, which served as the headquarters of the church from September 1831 to March 1832. While living at the farm, Smith recorded a number of revelations which are included in the Doctrine and Covenants and continued his translation of the Bible.