MELBOURNE has been crowned the world's most liveable city, snaring the top spot from former number one Vancouver, in a survey ranking 140 cities around the world.

It has been nine years since Melbourne last topped the list, and Vancouver has been in poll position for many of the years since then.

Other Australian cities also fared well in the survey, with Sydney listed sixth and Perth and Adelaide joint eighth.

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Melbourne nosed in front of Vienna by achieving a score of 95.1 in the culture and environment section.

Overall, Melbourne scored 97.5, with perfect 100 scores for healthcare, education and infrastructure.

Economist Intelligence Unit survey editor Jon Copestake said in a media release that Australian cities were so well placed in the survey ranking due to the "low population density and relatively low crime rates''.

Cities in the liveability survey are scored on social stability, crime rates, culture, education, healthcare and infrastructure.

Vancouver, the former number one ranking holder, was listed third most liveable city, after receiving a dip in its infrastructure score of 92.9

Toronto and Calgary in Canada scored fourth and fifth respectively.

Originally published as It's official - Melbourne is the best