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.

The group was assembled by vocalist/guitarists Dion Palmer and Jimmy Christmas, who put together a collection of songs and built a four-piece combo, featuring founding members English Jake and Rich Mixture, during late 1998 and started playing at the Frisbee Leisure Lounge parties along Symonds Street, followed shortly thereafter by inner city pub gigs. They have also played at the Big Day Out and at the SXSW Music Festival in Austin, Texas.