Major James Wallis (11 October 1785 – 12 July 1858) was an Anglo-Irish military officer who served in the 46th Regiment of Foot. Wallis saw service in Dominica, New South Wales and India. During his deployment in New South Wales, he commanded a detachment of grenadiers which committed the Appin Massacre of 1816, and was later promoted to the post of Commandant at the convict settlement of Newcastle from 1816 to 1818. Wallis is also noted for producing a number of historically significant sketches and paintings during his colonial military career.
