John Percival Droop (4 October 1882 – 26 September 1963, in Vence, France) was a British classical archaeologist. He served as the professor of classical archaeology at the University of Liverpool from 1921 to 1948. Afterwards, he examined and analysed an Ancient Greek bowl form, dating from the 5th century BC, which later became known as Droop cups. Droop researched the temple of Artemis Orthia at Sparta. He was the son of Henry Richmond Droop (1832–1884), the mathematician, and Clara Baily (ca. 1841 - September 7, 1921).