Peter Bernard David de la Mare (3 September 1920 – 13 December 1989) was a New Zealand physical organic chemist. Born in Hamilton in 1920, he was the son of Sophia Ruth de la Mare (née Child), a medical practitioner, and Frederick Archibald de la Mare, a lawyer. He was educated at Hamilton High School, and then attended Victoria University College, from where he graduated in 1942 with a MSc in chemistry, winning the Shirtcliffe Fellowship and the Jacob Joseph Scholarship.