Baldwin Harvey Watts (1835-1928) was a Mormon missionary and polygamist living in Kanosh, Utah.

Baldwin Harvey Watts was born on April 10, 1835, in Raymond, Mississippi, to Robert Harrison Watts and Elizabeth Heath. In 1842 he moved with his parent to Nauvoo, Illinois. They joined the exodus of the Saints in 1846 and eventually arrived in Utah in 1850, where they located on the Weber River south of Ogden.

In 1855, Watts was called with 26 other men to establish Fort Lemhi on the Salmon River in present-day Idaho. That fall he married Barbara Jane Levi, and together they had seven children, four of whom lived to adulthood. Watts returned to Fort Lemhi in 1857 and was present when the fort was attacked by a local band of Native Americans. Upon his safe return, Watts and his wife moved from Ogden to Springville, where they lived until July 1865, when they returned to Ogden.

In November 1867, Watts moved south to Kanosh. On April 6, 1874, he was called on a mission to England. On April 10, 1876, he married his second wife, Emma Whedon, at Salt Lake City, Utah, with whom he had seven children. Watts was imprisoned for polygamy from 1888 to 1889.

Baldwin Harvey Watts died on December 2, 1928, in Kanosh, Utah.