George Robert Bayne Giles (21 December 1913 – 11 July 1973) was a New Zealand track and road cyclist.

[2] Giles was born in Christchurch where he worked in a cycle shop, then as a barman at a hotel.

[3] After being initially overlooked for selection due to his times not being "up to the required standard",[4] he represented New Zealand at the 1936 Summer Olympics at Berlin in the sprint, 1000 m time trial, and in the road race.

At the 1938 British Empire Games in Sydney he won the bronze medal in the sprint and placed ninth in the time trial.

[1] He died suddenly in Wanganui on 11 July 1973 aged 59, leaving a wife and four sons.