Average hotel room cost here of €132 is higher than in Rome
Dublin hotels are more expensive than Vancouver, Chicago, Brussels or Rome.
The capital ranks 35th most expensive in a list of 106 cities as part of a global index compiled by Bloomberg.
The average hotel cost here is €132, with the average five-star cost €225 and the average three-star cost at €101, according to the data.
That compares with the overall average cost of $147 (€108) in Chicago and €105 in Brussels.
Stephen McNally, president of the Irish Hotels Federation and deputy chief executive of the Dalata Hotel Group, said there was value to be had in Dublin, even though business was on the up again.
"In the city centre it's buoyant, the first quarter has been very strong generally," he said.
"There's been huge demand. But the city is still very competitive when you compare it against other UK cities.
"That is where I would be benching Dublin more than places like Vancouver. Our biggest market is the UK.
"There are certain peak times when concerts are on, and rates approach more optimal level, but in general terms rooms are very, very affordable in Dublin most of the time."
If you've done Dublin and are looking elsewhere, world travellers on the hunt for a cheap place to stay may want to avoid Geneva, Dubai and Miami, which are among the world's most expensive hotel destinations.
In Geneva, the average cost for a night is €226 , followed by Dubai at €200, and Kuwait City at €185. Room costs are pushed up in high barrier-to-entry markets where developable land is scarce and the number of hotels limited, as well as by a relatively affluent customer base.
In cities such as Edinburgh, which ranks above London, a limited supply of lower-end rooms pushes up expenses for visitors.
Geneva is 32pc more expensive than New York and London and 28pc costlier than Hong Kong, according to relative index values.
Geneva also topped the list for five-star hotels, which are luxury properties that include such amenities as a spa, full-service health club and signature golf course.
In that category, a room in the Swiss city costs an average of €451 a night, according to the index.
Los Angeles is number two for the highest-end properties, averaging €353 a night, followed by Tokyo at €323.
The five-star ranking includes cities with at least 10 hotels available for booking in that category.
Among European markets outside of Switzerland, a hotel room in Edinburgh costs an average of €177 a night, compared with €172 in London. Paris is next at €170.
Hong Kong leads the Asia-Pacific region and is number six in the world, with an average €177 nightly rate.
Singapore follows at €172 a night on average, according to the data.
For the cheapest options, choose Hanoi, Makati City in the Philippines and Chennai in India. (Additional reporting Bloomberg)