Harold Pierce Cazneaux (30 March 1878 – 19 June 1953), commonly referred to as H. P. Cazneaux, was an Australian photographer; a pioneer whose style had an indelible impact on Australian photographic history. In 1916, he was a founding member of the pictorialist Sydney Camera Circle. As a regular participator in national and international exhibitions, Cazneaux was unfaltering in his desire to contribute to the discussion about the photography of his times. His career between the Wars established him as "the country's leading pictorial photographer".[1]