York Post Office, post office building in York, Western Australia

The York Post Office is a two-storey Federation Arts and Crafts building on Avon Terrace, designed by Government Architect George Temple-Poole and built in 1893 by Thorn, Bower and Stewart. It is the oldest surviving two-storey post and telegraph building in Western Australia, constructed of rough-cut local stone and brick with a corrugated iron roof. The site has been used as a post office continuously since 1866.

The first post office on this site was a single-storey Victorian Georgian building with a shingle roof, erected in 1866; the site has been in continuous postal use since then. The current two-storey building, designed by Government Architect George Temple-Poole, was constructed in 1893 by Thorn, Bower and Stewart to serve York's growing role as the rural centre and railway town closest to the Yilgarn goldfields. In 1922 an exchange room was added, the only major alteration.

The post office clock, made by J. W. Benson of London in 1895, was so unreliable in the late 1890s that a public meeting was called to complain it never worked. The weather vane from Solomon Cook's 1852 mill was added to the roof in the early 1900s, without its cockerel.

The post office stands on Avon Terrace, with the 1895 Court House and Police Station next door, so it is easy to find on foot. The upstairs residence, now offices and a short-term rental apartment, is not open to casual visitors; the working postal area is accessible during normal counter hours.

The weather vane on the roof came from Solomon Cook's mill of 1852, which stood at the corner of Avon Terrace and Macartney Street; it was installed in the early 1900s without its cockerel. The upstairs residence, once the postmaster's, now holds offices and a short-term rental apartment; former office occupants include the poet John Kinsella.