Knight & Kerr was a business partnership established in the 1850s between John George Knight and Peter Kerr. Their practice was important in the development of Melbourne as a city during the boom period led by the gold rush, providing the rapidly expanding state capital with many works of cultural and political significance. They were architects appointed with the responsibility for the design of noted public buildings in Melbourne, Australia; their most well known design being the Parliament House of Victoria. John Knight and Peter Kerr were also both members of The Royal British Institute of Architects.

John George Knight, was an architect and Government Resident of the Northern Territory in Australia.