Auburn is a Western Sydney suburb in the state of New South Wales, Australia. Auburn is located 16 kilometres (9.9 mi) west of the Sydney central business district and is in the local government area of Cumberland City Council, having previously been the administrative centre of Auburn Council. The suburb was named after Oliver Goldsmith’s poem The Deserted Village, which describes ‘Auburn’ in England as the “loveliest village of the plain”.

According to the 2021 census, there were 32,425 residents in Auburn. The most common reported ancestries were Chinese 30.2%, Korean 13.9%, English 6.9%, Australian 6.1% and Nepalese 5.1%. 31.3% of people were born in Australia. The next most common countries of birth were China 13.9%, Korea, Republic of (South) 11.6%, Vietnam 6.0%, Nepal 5.1% and The Philippines 2.8%. 19.8% of people only spoke English at home. Other languages spoken at home included Mandarin 15.0%, Korean 13.5%, Cantonese 10.2%, Nepali 4.9%, Vietnamese 4.7% and Arabic 4.2%. The most common responses for religious affiliation were No Religion 29.1%, Catholic 17.1%, Islam 11.1% and Buddhism 10.2%.

Auburn railway station is on the Western and Inner West & Leppington lines of the Sydney Trains network, where there are frequent services.