Nathaniel Newnham-Davis (6 November 1854 – 28 May 1917), generally known as Lieutenant Colonel Newnham-Davis, was a British food writer and gourmet. After a military career, he took up journalism, and was chiefly known for his restaurant reports from London establishments of the last decade of the 19th century and the first decade of the 20th. He was also active in the theatre as an occasional playwright and amateur performer.