George Robert Bayne Giles (21 December 1913 – 11 July 1973) was a New Zealand track and road cyclist. He was a New Zealand's leading track cyclist of the 1930s and held several national titles in 1936-38: the national sprint, time trial third time in succession, and 10-mile title. He died suddenly in Wanganui on 11 July 1973 aged 59, leaving a wife and four sons.