Passport applications in general are up by 26% on last year
The amount of UK applications for Irish passports has increased by 70%.
Between January and March 2017, 51,000 applications were received from the UK, compared to 30,000 last year.
Overall, there has been a surge in passport applications with the number of those applying for Irish passports in the first three months of this year up 26% from the same time last year.
The decision for the UK to leave the EU is thought to be a major factor in the increased demand for Irish passports.
It's expected that with the current surge in applications, the number will pass the one million mark in 2017.
The number of passport applications from people born in Great Britain for the first quarter of this year is almost half the 48,741 to have applied for Irish passport for the entire of 2016.
Similarly, applications for Irish passports from those born in Northern Ireland increased by 68% going from 16,581 in the first quarter of last year to 27,898 applications this year, which followed on from the 91,448 applications from Northern Ireland-born passport applicants last year.
Last year, the Department of Foreign Affairs (DFA) issued 733,060 passports, which represented a 9% increase on 2015 and the projected one million passport applications follows last year's Census confirming Ireland's population is now 4.76m.
The number of passports issued last year created €46.74m in revenue for the DFA.