George Manville Fenn (3 January 1831, Pimlico 26 August 1909, Isleworth) was a prolific English novelist, journalist, editor and educationalist. Many of his novels were written for young adults. His final book was a biography of his fellow writer for juveniles, George Alfred Henty.
In 1855, he married Susanna Leake; they had two sons and six daughters. Fenn's first story for boys, Hollowdell Grange, appeared in 1867. It was followed by a long list of other novels for juveniles and adults. Having become editor of Cassell's Magazine in 1870, he purchased Once a Week and edited it until it closed in 1879. He also wrote for the theatre. Fenn and his family lived at Syon Lodge, Isleworth, Middlesex, where he built up a library of 25,000 volumes and took up telescope making.