Robert Archibald Wilton (31 July 1868 – 18 or 19 January 1925) was a right-wing English journalist and an antisemite. He was a proponent of blood libel and claimed that execution of the Romanovs was a ritual murder by the Jews. Wilton served with the Russian army during the First World War, and was awarded the Cross of St George. He was the author of two books: Russia's Agony (published by Edward Arnold, London, 1918) and The Last Days of the Romanovs (1920).