Zagreb won in a competition with 20 cities and is the only one holding the best Christmas holiday destination title for three consecutive years.
A total of 200,596 people from 131 countries voted in the poll and Zagreb received 38,830 votes. Colmar, France came second with 24,625 votes.
Zagreb has not earned the title with the Advent season's dazzle and diverse programme alone, but also with jumps in arrivals and bed/nights, the Tourist Board said. In the first nine days of this year's Advent, December 1-10, there were 37,685 arrivals, up 28% on the year, and 68,480 nights, an annual increase of 23%.
Domestic guests generated 20,158 nights (+22%), while foreigners accounted for 48,322 (+24%). The most numerous foreigners came from Italy, Austria, Bosnia and Herzegovina, the UK and the US.
Advent in Zagreb lasts until January 7.