Billy Apple  1 January 1935 – 6 September 2021) was a New Zealand artist. Most of his works focused on pop art in the 1960s and with the Conceptual Art movement in the 1970s. He worked with Andy Warhol and other pop artists.(born Barrie Bates;
His work is part of the permanent collections of the Museum of New Zealand Te Papa Tongarewa, Auckland Art Gallery Toi o Tamaki, the Christchurch Art Gallery, Te Puna o Waiwhetu, The University of Auckland, and the SMAK/Stedelijk Museum voor Actuele Kunst. He was born in Auckland, New Zealand.
Apple died on 6 September 2021 in Auckland from a short-illness, aged 86.