Adelaide-born Geoffrey Collins studied at the Sydney Conservatorium with Nancy Salas (piano) and Victor McMahon, James Pellerite and Margaret Crawford (flute).

In 1982, while lecturer in flute at the Queensland Conservatorium, he was awarded a Churchill Fellowship to study in Europe with William Bennett, Michael Debost and Peter Lukas-Graf.
Geoffrey currently holds two positions: his long standing appointment as flautist with the Australia Ensemble and principal flute with the Adelaide Symphony Orchestra. Geoffrey has held a number of the country's most coveted flute positions, including associate principal flute and frequent guest principal with the Sydney Symphony Orchestra and, for many years, principal flute in the Australian Chamber Orchestra.

A concerto soloist with most of Australia's leading orchestras, he has also played with such contemporary music groups as AZ Music, ACME, the Seymour Group, Flederman and the Sydney Alpha Ensemble. In 2002 he gave the Australian premiere of Christopher Rouse's flute concerto with the Adelaide Symphony orchestra. Recordings include Spinning (contemporary Australian works), the complete Mozart flute quartets with the Australia Ensemble and a duo recital with Australian harpist Alice Giles, Enchanted Dreams…Exotic Dances.