Gerry McAvoy (born John Gerrard McAvoy, 19 December 1951, in Belfast, Antrim, Northern Ireland) played bass guitar for Rory Gallagher between 1971 and 1991. He began his musical career in the Belfast band Deep Joy. During his tenure with Deep Joy he first played with drummer Brendan O'Neill, who was later to tour with Rory Gallagher and appear on Gallagher's final album Fresh Evidence. 2006 saw the publication of his biography Riding Shotgun - 35 years on the road with Rory Gallagher and Nine Below Zero.