General Post Office, Adelaide

General Post Office, Adelaide
View from Victoria Square, c. 1885
Interactive map of the General Post Office, Adelaide area
General information
Architectural styleNeoclassical
LocationAdelaide, South Australia
Coordinates34°55′33.96″S 138°36′0.66″E / 34.9261000°S 138.6001833°E / -34.9261000; 138.6001833
Construction started1867
Completed1872
Closed11 October 2019
Design and construction
ArchitectsEdmund Wright and Edward Woods
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The General Post Office is a colonial-era building situated on 141 King William Street on the north-west corner of King William Street and Victoria Square in Adelaide, South Australia, Australia. It is the former General Post Office for South Australia. Postal services operated from the building between 6 May 1872 and 11 October 2019.

A 14-story hotel was built behind the historic structure. It opened as the Adelaide Marriott Hotel in 2024.