Peter Kerr (21 April 1820 – 31 March 1912) was an Australian architect and the principal designer of the Parliament House of Victoria, Australia, commencing from a government architect's basic design.^[1]

Kerr immigrated to Melbourne in 1852 after working under Sir Charles Barry on the design of the Palace of Westminster.^[2] Having also associated with Augustus Pugin, he was well versed in the Gothic Revival style in which, over 40 years, he developed one of the city's great buildings.