Terence Patrick O'Neill CBE (30 July 1938 – 16 November 2019) was a British photographer, known for documenting the fashions, styles, and celebrities of the 1960s. O'Neill's photographs capture his subjects candidly or in unconventional settings.
His work has been featured in numerous exhibitions. He was awarded an honorary fellowship of the Royal Photographic Society in 2004 and the society's Centenary Medal in 2011. His work is held in the collection of the National Portrait Gallery, London.