More than 900,000 Irish passports were issued this year, according to the Department of Foreign Affairs and Trade.
The figure is up 7% on 2018 and is a new record.
It is made up of renewals and new applications.
The department said more than 5,800 applications were submitted from around the world in a single day during peak periods.
Total monthly applications exceeded 100,000 in January, March, April and May in 2019.
As in previous years, there were a significant number of applicants from Northern Ireland and Britain.
More than 94,000 first-time applications were received from people born in Northern Ireland or Britain.
The number of people applying for citizenship through Foreign Births Registration continues to grow with more than 29,000 applications in 2019 and more than 16,000 applications processed, which is the highest number ever registered in a single year.
Meanwhile, the oldest online applicant was 101 and the youngest five days old.
A total of 51% of passport applications were submitted online this year.
The most popular baby girls' names were Grace, Emily and Anna, while Jack, James and Noah topped the baby boys' list.
The most popular surname was Murphy.