The D4 was a rock band from Auckland, New Zealand. Their music was released by Hollywood Records in the U.S., Flying Nun Records in New Zealand and by Infectious Records in the UK.

Flying Nun Records is a New Zealand independent record label formed in Christchurch in 1981 by music store manager Roger Shepherd. Described by The Guardian as "one of the world's great independent labels", Flying Nun is notable for bringing global attention to the Dunedin sound, a cultural and musical movement in early 1980s Dunedin.