Amaroo (/ˈæməruː/) is a suburb in the Canberra, Australia district of Gungahlin and was gazetted on 18 October 1991.

Amaroo is adjacent to the suburbs of Ngunnawal, Gungahlin, Moncrieff, Forde, Bonner and Jacka.

John and Maria (née Mansfield) Crinigan lived in a stone cottage at this site from about 1842 until 1863.

John was a native of Westmeath, Ireland and at 19 years of age was sentenced to transportation for life for "assaulting habitation".

He arrived in the colony of New South Wales in 1836 and was assigned to work for George Thomas Palmer on his property Palmerville (the remains of the homestead are now under the Heritage Park in Belconnen).

A combined Technology, Arts and Science block is located within the Middle and High School.

[8] Amaroo was the first suburb in the ACT to receive the 100 Mbit/s NBN internet and amongst the first places in Australia (outside of the pilot program).

A long fault runs parallel with the folding axis along the south east side along Ginninderra Creek determining its orientation.