Melbourne has retained its status as the world's most liveable city for a fourth consecutive year, outscoring three other Australian cities in the top 10.

The Economist Intelligence Unit's Global Liveability Index found Melbourne to be ahead of 139 other cities, with the city scoring well across a range of criteria, including health care, culture and environment, education and infrastructure.

Where else would you rather be? Nowhere, it seems.

It also scored a perfect 100 points in the sub-category of sport.

Vienna ranked second in the survey, with Adelaide (5th), Sydney (7th) and Perth (9th) also polling well.