Mercer's 2013 Cost of Living Survey says Canadian cites, overall, moved down in the ranking this year due to a slight decrease in the Canadian dollar against the U.S. dollar.
The city of Luanada in Angola is the world's most expensive city for expats, followed by Moscow where a cup of coffee can cost $8.29.
The study also says the cost of housing for expats is usually the biggest expense for employers. A luxury two-bedroom unfurnished apartment in Moscow costs $4,600 a month.
Rounding out the top five most expensive cities for expats Tokyo, Ndjamena in Chad and Singapore.
Other expensive cities on the top 10 list are: Hong Kong, Switzerland's Geneva, Zurich and Bern and Sydney, Australia.
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