Robert Justice (March 15, 1809 – October 2, 1889) was an early statesman in the U.S. state of Ohio. He began his political career in 1840 after being elected to the position of county recorder of Holmes County. Following the end of his term in 1843 he was elected as auditor of that same county. He served as a state senator for Ohio representing the counties of Holmes, Wayne, Knox, and Morrow in 1866.
Robert Justice is best known for his nine consecutive terms which he served as justice of the peace in Holmes County.