Ernest Bruce Iwan-Müller was a journalist. He was only son of Sévère Félicité Iwan-Müller and Anne Moule, the daughter of John Moule of Elmsley Lovett, Worcestershire. He had one sister, Elizabeth. He remained unmarried.
Iwan-Müller studied at King's College School, London and New College, Oxford. He became a senior teacher in classics at Brackenbury's school, Wimbledon, before becoming a private tutor in Oxford in 1879, a post he held until 1884. He was an outspoken Tory and was known as the 'genial giant'.
From 1884 until 1893 Iwan-Müller was editor of the Manchester Courier. He subsequently worked as assistant editor of the Pall Mall Gazette under Harry Cust from 1893 to 1896 and for the Daily Telegraph from 1896 until his death. He also contributed numerous political articles to journals such as the Quarterly Review and Fortnightly Review. He was a trusted adviser to the Conservative Prime Minister, Lord Salisbury. His books include Lord Milner in South Africa (1902) and Ireland To-day and To-morrow (1907). His Life and Times of Sir Robert Morier was completed at his death by Sir Robert's daughter, Mrs. Wemyss (1911).
Iwan-Müller's portrait was painted by Hugh de T. Glazebrook. He was a member of The Arts Club from 1905 to 1910.
The Annual Register, London, 1910, p. 125; M., 'Ernest Bruce Iwan-Müller', 1912, Dictionary of National Biography Online, Oxford, 1997 (accessed 11 March 2004).