Allambie Heights is a suburb of northern Sydney, in the state of New South Wales, Australia 17 kilometres north-east of the Sydney central business district in the local government area of Warringah Council. It is part of the Northern Beaches region.
Allambie is an Aboriginal word that means "peaceful place". An estate by that name was subdivided and auctioned in 1918. A "goat track" that roughly follows the existing Allambie Road today, was most likely used by the Aboriginal people to access the ocean beaches at nearby Manly. The suburb was developed in the late 1940s and early 1950s. Allambie Heights Post Office opened on 1 February 1961.
Many of the streets in Allambie Heights are named after notable battles (particularly where Australian Troops served), and prominent allied political leaders of World War II. These include Owen Stanley Avenue, Wewak Place, Kirra Road, Libya Crescent, Derna Crescent, Tobruk Avenue, Anzio Avenue, and Roosevelt Avenue and Churchill Crescent.
According to the 2011 census of Population, there were 6,742 residents in Allambie Heights. 71.4% of residents were born in Australia. The most common other countries of birth were England 7.3%, New Zealand 1.7% and Italy 1.3%. 83.8% of residents spoke only English at home. Other languages spoken at home included Italian 1.8%, German 1.3% and Mandarin 1.1%. The most common responses for religious affiliation were Catholic 29.5%), No Religion 23.2% and Anglican 17.6%.