Ira Nathaniel Hinckley (October 30, 1828 – April 10, 1904) was an early Latter Day Saint leader who supervised the construction and maintenance of Cove Fort, along with his brother Arza Hinckley, a strategically placed fortification about halfway between Salt Lake City and St. George, Utah.
He joined the Church of Jesus Christ of Latter Day Saints in 1844.
In 1867, Hinckley was living on his farm in Coalville, Utah Territory, when Brigham Young asked him to build a fortified way station at Cove Creek.
He had four wives, but never more than three at one time: Eliza Jane Evans, Adelaide Cameron Noble, her sister Angeline Wilcox Noble, and Margaret Harley, who was 31 years his junior.
The last-born, a daughter of Harley who was born when Ira was 61, did not meet her father until she was almost two years old because he was afraid that he might be arrested for cohabitation if he visited her house.