Piangil, once frequently spelled "Pyangil", is a town in the Mallee region of northern Victoria, Australia. It is approximately 382 kilometres (237 mi) north west of the state capital, Melbourne and 46 kilometres (29 mi) north west of the regional centre of Swan Hill. At the 2011 census, Piangil and the surrounding rural area had a population of 333.
Piangil Post Office opened on 17 June 1907 and was renamed Piangil North in 1918 when Piangil was relocated adjacent to the railway station. A new Piangil Post Office opened in 1921 and is still in operation.