Yallambie is a suburb of Melbourne, Victoria, Australia, 16 km north-east from Melbourne's Central Business District. Its local government area is the City of Banyule. At the 2011 census, Yallambie had a population of 4,129.
Yallambie is a residential suburb stretched between Greensborough Road to the west and the Plenty River on its east. Its southern border is Lower Plenty Road and Yallambie Road in the north.
The predominant feature in Yallambie is the Simpson Army Barracks. Originally known as the Watsonia Military Camp, it was set up during the Second World War.
Yallambie's residential population almost doubled when a large parcel of reserved land behind the barracks was converted to residential use following rationalisation of military facilities during the late 1980s.
Yallambie is home to the Federal Government agency Australian Radiation Protection and Nuclear Safety Agency (ARPANSA).
Yallambie has never had a post office of that name, however the Simpson Barracks Post Office opened on 31 March 1987, replacing the Macleod office open since 1923, and was closed in 1996. A Watsonia Military office was open from 1942 until 1946 and a Watsonia Camp office was open from 1948 until 1952.
Yallambie is also home to Streeton Primary School, which is a combination of 2 previous schools called Watsonia South Primary School & Yallambie Primary School which is located on the old Yallambie Primary School site. Streeton is named after well known artist Arthur Streeton. Yallambie's main pre-school facility is Yallambie Park Pre-School, which is located on the same road as Streeton Primary School.