Strathnairn (postcode: 2615) is a suburb in the Belconnen district of Canberra, located within the Australian Capital Territory, Australia.

The suburb was gazetted in 2016 as part of the West Belconnen / Parkwood cross-border development near the Australian Capital Territory and New South Wales border.

Grinding grooves located on the Molonglo River to the south of Strathnairn provide evidence of Aboriginal use of the region pre-colonisation.

[3] The main access route between Queanbeyan, Tumut and the Kiandra goldfields from the 1830s-1880s was via a historic roadway running through Strathnairn to Cusack's Crossing on the Murrumbidgee.

[8] The Belconnen property was partly resumed by the Commonwealth in 1913 for development of the Federal Capital Territory, and was subsequently broken in several smaller leases.