Hugh Francis "Bob" O'Lone (ca 1836 – early January, 1871) was an American-born saloon keeper and political figure in Manitoba.
He was a member of the Convention of Forty and served in the Legislative Assembly of Assiniboia.
O'Lone took part in the defense of Washington during the American Civil War.
He was wounded at Petersburg, Virginia and was discharged in January 1865 as captain of Company F. With two partners, O'Lone came to Portage la Prairie later that year.
It is believed that he was one of several persons killed by Canadian troops in retaliation for the execution of Thomas Scott.