Robert Lenox (d. 1789) was a Scottish physician in Chowan County who wrote a petition to Arthur Dobbs in 1762 regarding Lenox's ongoing legal suit with John Campbell. Later he became a resident of Bertie County who in 1777 refused to swear an oath to the State of North Carolina and consequently had to leave the state. Later that year, fellow Bertie County resident James Buchanan wrote that he, along with Lenox and Francis Johnston, planned to leave on the brig Tryal and head to Saint Croix. Whether he left on the Tryal or not, Lenox left his family behind and was residing in London by 1780. He returned to Bertie in 1782, where he resided until his death.