Sir Harold Leslie Boyce, 1st Baronet KBE, KStJ (9 July 1895 – 30 May 1955) was an Australian-born British Conservative Party politician. Boyce was born in Taree, New South Wales, the son of Charles Macleay Boyce, a solicitor, and his wife Ethel May (née) Thorne. He was educated at The Sydney Church of England Grammar School (Shore), Sydney Grammar School and Balliol College, Oxford, and was later called to the Bar, Inner Temple. He served during the First World War in the Australian Imperial Force as a second lieutenant in the 27th Battalion, and later as a lieutenant in the 10th Battalion. In July 1916, he was wounded at Pozières and invalided back to Adelaide.