Reverend Geoffrey Lowrey Speak (史璧琦牧師) OBE (6 October 1924 – 13 March 2000)[1] was a British teacher and educationist to Hong Kong.

He served as the ninth principal of St. Paul's College, Hong Kong and first headmaster of Island School.

Speak oversaw the expansion of the school from a few hundred to 2000, and the grand rebuild programme of the Bonham Road Campus of St. Paul's College, Hong Kong.

He resigned from St. Paul's College in July 1967 and became the first principal of Island School with government endorsement.

Speak retired as the Secretary of English Schools Foundation in 1984 and returned to England thereafter.