William Franklin Culbert MNZM (23 January 1935 – 28 March 2019) was a New Zealand artist, notable for his use of light in painting, photography, sculpture and installation work, as well as his use of found and recycled materials. He was born in Port Chalmers, near Dunedin, and divided his time between London, Croagnes in southern France, and New Zealand. He was married to artist (1938–2016) and made many collaborative works with artist Ralph Hotere.