4A Centre for Contemporary Asian Art, formerly known as Gallery 4A, 4A Galleries, Asia-Australia Arts Centre and also known simply as 4A, is an Australian independent not-for-profit organisation based in the Haymarket area of Sydney, New South Wales. It commissions, exhibits, documents and researches Asian and Asian-Australian contemporary art in Australia, and promotes Australian talent in Asia, promoting and maintaining cultural connections between the nation and the region. The gallery and the associated Performance 4A (for the performing arts) were founded by the Asian Australian Artists Association Inc. in 1997.

The centre is funded mainly by Commonwealth, state and local government sources, but also by private sponsors and organisations, and generates its own income. It has partnered with the Sydney Biennale twice, as well as other organisations such as the Campbelltown Arts Centre to mount major exhibitions and events.

4A began in 1995 when a group of artists, curators and theatre-makers started meetings to discuss how to encourage Asian Australian creatives and contribute to the national discourse about Australian culture, and to broaden the understanding of what constitutes Australian art, and bring about structural change. They established the Asian Australian Artists Association Inc. in 1996, to "present and promote the work of Asian and Asian-Australian artists". The association was initially focused on both theatre and visual art. The organisation was then split into Gallery 4A (opened in 1997) and Performance 4A (which later split off and became Contemporary Asian Australian Performance, a resident company at Carriageworks). Founding artists and curators included Filipino-Australian artist Victoria Lobregat, Vietnamese-born Dacchi Dang, Hong Kong-born John Young and Melissa Chiu, who was also the inaugural director.

4A was established at the end of the Keating government, which had established ties with and engaged with Asia. Soon afterwards Pauline Hanson, who questioned the value of multiculturalism in Australia and spouted anti-Asian rhetoric (suggesting that Australia was "in danger of being swamped by Asians"), was emerging in Australian politics, and as such a continuing goal of the organisation has been to "highlight the cultural contribution of Asian migration to Australia and to develop Asian and Australian cultural relations". However, at the same time, the influence of both Indigenous Australian art and that of Australia's migrants was being felt and discussed at conferences, in writing and in artistic circles.

The first gallery, called Gallery 4A, opened on Sussex Street in 1997, in Sydney's Chinatown, before relocating in 1999 to a larger site with two galleries on Liverpool Street and again in the following year to its current location on Hay Street in the heritage-listed Corporation Building, owned by the City of Sydney.

In 2003 and 2004 fundraising exhibitions were mounted at the gallery, which was then known as the Asia-Australia Arts Centre (a name it retained until 2009). At that time public funding accounted for only around 20% of total income.

In 2006, Gallery 4A partnered with the Sydney Biennale for the first time, displaying works at "Gallery 4a at the Asia-Australia Arts Centre" for the 15th edition of the event from June to August.

In 2009 the organisation was renamed 4A Centre for Contemporary Asian Art. There were times during the 2000s and early 2010s when 4A nearly went under owing to lack of funding.