Vaucluse is an eastern suburb of Sydney, in the state of New South Wales, Australia. It is located 8 kilometres (5 mi) east of the Sydney central business district, in the local government areas of Waverley Council and the Municipality of Woollahra.

At the 2021 census, 9,510 people were recorded in Vaucluse. 58.7% of people were born in Australia, the next most common counties of birth included South Africa 8.0%, England 5.2%, China (excluding Special Administrative Regions and Taiwan) 3.2%, New Zealand 1.7% and the United States of America 1.3%. 75.9% of people only spoke English at home, the next most common languages spoken at home included Mandarin 3.4%, Greek 2.5%, Hebrew 1.4%, Russian 1.3%, and Spanish 1.3%. The most common responses for language included Mo Religion 27.4%, Judaism 24.0%, Catholic 18.3% and Anglican 10.1%, a further 6.5% of respondents elected not to disclose their religion. The average incomes in Vaucluse were $3,418 household compared to $1,746 nationally, $1,393 personal compared to $805 nationally, and $4,560 for families compared to $2,120 nationally. Median monthly mortgage repayments were $4,200. Types of dwellings in Vaucluse consisted primarily of separate houses at 48.4%, there was a similar amount of Flats or apartments at 40.4%, other housing types in Vaucluse included semi-detached, row or terrace house, townhouse etc at 8.4%, and all other dwellings at 2.1%.