Girolamo Pieri Pecci Ballati Nerli, known more commonly as Girolamo Nerli, was an Italian painter who worked and travelled in Australia and New Zealand in the late 19th century influencing Charles Conder and Frances Hodgkins and helping to move Australian and New Zealand art in new directions. His portrait of Robert Louis Stevenson in the Scottish National Portrait Gallery Edinburgh, is usually considered the most searching portrayal of the writer.