John Walker Baily
John Walker Baily (9 January 1809 – 4 March 1873), was an archaeologist.
Baily was the brother of Charles Baily, and was born 9 January 1809, and died 4 March 1873. He was head of the firm of William Baily & Sons, and master of the Ironmongers' Company in 1862-3. He is chiefly known to archaeologists as having formed an important collection of Romano-British and medieval remains unearthed by excavations in the City of London during the years 1862-72. This collection was purchased in 1881 by the Corporation of London for their museum of City antiquities. In the same year his collection of arms and armour, formed 1835-45, became the property of the Baron de Cosson, of Chertsey.