Wanniassa is a suburb in Australia's capital, Canberra: more specifically, in the city's southern district of Tuggeranong. The suburb takes its name from a pastoral property granted to Thomas McQuoid in 1835, which he named after Wanayasa in Purwakarta Regency, West Java, Indonesia, where McQuoid had previously owned property. Streets are named after Victorian state politicians and the suburb was gazetted on 21 May 1974.

Tuggeranong is a district in the Australian Capital Territory in Australia. The district is subdivided into divisions (suburbs), sections and blocks and is the southernmost district of the Australian Capital Territory. The district comprises nineteen suburbs and occupies 117 square kilometres (45 sq mi) to the east of the Murrumbidgee River.