John Vincent Stanley Megaw (born 1934) is a British-born Australian archaeologist with research interests focusing on the archaeology and anthropology of art and musical instruments, Australasian prehistory and protohistory. He is a specialist in early Celtic art and contemporary Australian Indigenous art.
Megaw was educated at University College School, Hampstead and Edinburgh University, and worked on a number key sites in Europe as well as carrying out pioneering work in the South Sydney region of Australia. He undertook extensive research with his wife, Ruth Megaw, on the art of the European pre-Roman Iron Age; they wrote several publications together. In 1961, after working as an editor at Thames and Hudson, he accepted a position at the University of Sydney as Lecturer and subsequently Senior Lecturer in European Iron Age Archaeology. From 1971 to 1982 he held the Chair of Archaeology and Head of Department at Leicester University. His other appointments have included Visiting Professorship at the University of Edinburgh and Senior Honorary Research Fellow in the Department of Archaeology at the University of Glasgow (from 1998 with his wife). Ruth Megaw died in 2013.
He was elected to the Australian Academy of the Humanities in 1985 and in 2004 was made a Member of the Order of Australia.Megaw, Ruth and Vincent, Celtic Art, 1989, Thames and Hudson, ISBN 0500050503