Sir James William Olive KBE (1856 – 14 January 1942) was Assistant Commissioner "A" of the London Metropolitan Police from 1920 to 1925. As such, he was in charge of administration and uniformed operations and was the Commissioner's deputy. From 1922, he became the first officer formally to be granted the title of Deputy Commissioner. A month after he joined the police, Olive was (as a musician) a founder member of the Police Minstrels, who put on entertainments at police stations. He later became their president.