Kempsey Post Office is a heritage-listed post office at Belgrave Street, Kempsey, Kempsey Shire, New South Wales, Australia. It was designed by the Colonial Architect's Office under James Barnet, and was built by Gabriel and McMorrine, with additions in 1903-04 built by Hocking Brothers. The property is owned by Australia Post. It was added to the New South Wales State Heritage Register on 22 December 2000.