John Garstang (May 5, 1876 – September 12, 1956, Beirut) was a British archaeologist of the ancient Near East, particularly Anatolia and the southern Levant. He was educated at Queen Elizabeth's, Blackburn, and Jesus College, Oxford. Following undergraduate studies in mathematics at Oxford, his attentions turned to archaeology.
From 1897 to 1908 he conducted excavations at Roman sites in Britain, Egypt, Nubia, Asia Minor and North Syria. Later, his studies took him to the Sudan and Meroe (between 1909 and 1914) and Palestine at Ashkelon (1920–1921) and Jericho (1930–1936).
He was professor of archaeology at the University of Liverpool from 1907 to 1941. He served as the Director of the Department of Antiquities in the British Mandate of Palestine between 1920 and 1926, as well as filling the position of Head of the British School of Archaeology in Jerusalem (1919–1926). He taught at the Egyptology section of the Faculty of Arts when it was established in the 1920s. Later, in 1947, Garstang founded the British Institute of Archaeology at Ankara, acting as its first director (he was succeeded by Seton Lloyd).