The Austrian capital came on top by scoring near perfect marks across all the categories in the new liveability index, which has been compiled by The Economist Intelligence Unit (EIU).
Melbourne and Sydney in Australia placed second and third place respectively, followed by Osaka, Japan. A trio of Canadian cities - Calgary, Vancouver and Toronto also made the top 10 as well as Tokyo in Japan, Copenhagen in Denmark. Adelaide in Australia rounded out the top 10 liveable cities.
Agathe Demarais, The EIU's global forecasting director, said: "Western Europe and North America continue to be the most liveable regions in the world, and cities in these regions remain well placed in the overall rankings. Western Europe is home to the top-scoring city, Vienna, hosts 16 of the top 30 and 26 of the 68 that record scores of 80 or higher. In general, cities in northern Europe score highly, while those in southern Europe achieve poorer scores by comparison, hampered by factors such as higher crime rates and slightly weaker infrastructure scores. The regional average ratings for western Europe and North America both exceed 90, which is significantly higher than the next-best regional average - 73 for Asia and Australasia."
Elsewhere, Damascus in Syria, Lagos in Nigeria, Dhaka in Bangladesh and Tripoli in Libya were named the least liveable cities.