Archibald Arthur FRSE (6 September 1744 – 14 June 1797) was a Scottish Enlightenment philosopher. An alumnus of the University of Glasgow, he served as University chaplain from 1774 – 1794, and librarian from 1780 - 1794. Between 1780 and 1794 he worked as an assistant to Professor of Moral Philosophy Thomas Reid, taking on the latter's teaching duties, and succeeding him in 1796.