Dame Gillian Karawe Whitehead, DNZM (born 23 April 1941) is a New Zealand composer.
She studied at the University of Auckland from 1959–62, and Victoria University of Wellington in 1963, graduating BMus Hons in 1964. She then studied composition at the University of Sydney with Peter Sculthorpe from 1964–65, graduating MMus in 1966. That same year she attended a composition course given by Peter Maxwell Davies in Adelaide and in 1967 travelled to England to continue studying with him.
She worked in London composing and copying music for two years and then with the assistance of a New Zealand Arts Council grant worked in Portugal and Italy from 1969-70. For the next seven years she continued freelance composing, principally based in the UK. Her first opera Tristan and Iseult was composed in 1975 and premiered in 1978. From 1978-80 she held an English academic post, having been during that time Composer in Residence for Northern Arts attached to Newcastle University.
In 1981 she returned to New South Wales, to join the staff of the Composition School at the Sydney Conservatorium of Music. She was for four years Head of Composition there, before taking early retirement in 1996.
Currently she divides her time between Sydney and Dunedin. In 1999 her opera, Outrageous Fortune, won the SOUNZ Contemporary Award and she was honoured with membership to the New Zealand Order of Merit.
In 2000, she became one of the inaugural Artist Laureates of the New Zealand Arts Foundation and is now a governor of the organisation. During 2000 and 2001 she was Composer in Residence at the Auckland Philharmonia and her major orchestral work, The Improbable Ordered Dance, written during the Residency won the 2001 SOUNZ Contemporary Award.
Whitehead has written a wide range of music including works for solo, chamber, choral, orchestral and operatic forces, most of them direct commissions from performers and funding organisations. A number of her works have been recorded for commercial release, including a CD of her chamber works by Wai-te-ata Music Press and a recording of her opera, Outrageous Fortune.