| By Leila Reypour
The survey rated cities out of 100 in the areas of health care, education, stability, culture and environment and infrastructure.
Melbourne again achieved a score of 97.5, just two-and-a-half points shy of perfection.
"Those that score best tend to be mid-sized cities in wealthier countries with a relatively low population density," the EIU report said.
"These can foster a range of recreational activities without leading to high crime levels or overburdened infrastructure."
Seven of the top 10 scoring cities were in Australia and Canada.
The report said civil unrest and acts of terror had triggered stability declines around the world including in France and Tunisia.
The "ongoing actions" of Islamic State had created a further heightened threat of terrorism in many countries.
The Syrian capital Damascus saw the biggest fall in liveability scores over a five-year period.
Zimbabwe's capital Harare was the most improved city in the EIU report.
The five most liveable cities:
- Melbourne, Australia
- Vienna, Austria
- Vancouver, Canada
- Toronto, Canada
- Adelaide, Australia
The five least liveable cities:
- Tripoli, Libya
- Lagos, Nigeria
- Port Moresby, PNG
- Dhaka, Bangladesh
- Damascus, Syria
Source: SBS NEWS