Reginald Clifton Firth (12 April 1904 – 31 August 1980) was a New Zealand graphic designer and photographer. Influenced by writings of the Bauhaus and contemporaries, especially the Swiss typographer Jan Tschichold, Firth's design work of the late 1920s and early 30s was some of the earliest modernist graphic design in New Zealand. Firth later went on to be a successful portrait photographer in Auckland during and after the Second World War.