Giles Pollock Havergal CBE (born 9 June 1938) is a theatre director and actor, opera stage director, teacher, and adaptor. He was artistic director of Glasgow's Citizens Theatre from 1969 until he stepped down in 2003, one of the triumvirate of directors at the theatre, alongside Philip Prowse and Robert David MacDonald.
Giles Pollock Havergal was born in Edinburgh, Scotland to Dr. Henry MacLeod Havergal and his wife Hyacinth.
Havergal was director of Watford Palace Theatre (1965–69) and director of the Citizens Theatre from 1969 to 2003. He directed over 80 plays in Glasgow including works by Shakespeare and Bertolt Brecht. He has also directed over 20 children and family Christmas productions, as well as guest-directing for companies including Scottish Opera, Welsh National Opera, Opera North, Shared Experience, 7.84, Wexford Festival Opera, Buxton Festival, Vancouver Opera, Minnesota Opera, Gelsenkirchen Opera, National Theatre Mannheim.
Havergal's production of Travels with My Aunt, adapted from the Graham Greene novel of the same title, was first presented in Glasgow in 1989 and then played in the West End where it won a Laurence Olivier Award in 1993, and off Broadway in 1995.