It said that 21,500 Britons have applied for a passport since July, compared to less than 11,000 over the same period a year ago.
That's because acquiring a passport from the Republic of Ireland allows British citizens to retain their EU citizenship, leaving them free to travel and work on the continent after Brexit without visa restrictions.
There is also no obligation for an Irish citizen to give up their British passport - they can simply have dual citizenship.
Even MPs and peers are joining in: the number who have applied for an Irish passport is reportedly "in the double digits," according to The Times.
For those British citizens who are interested in doing the same, Business Insider has taken a look at what you need to do to become an Irish citizen, leaving you free to get hold of your very own Irish passport.