Citizenship ceremonies are taking place at the Convention Centre in Dublin.
Six ceremonies are being held over two days for approximately 6,000 people.
Applicants from over 138 countries and across all 32 counties on the island will make a declaration of fidelity and loyalty to the State and become Irish citizens.
Speaking ahead of the ceremonies, Minister of State Colm Brophy said: "I know the importance of migration and the essential role it plays in the development of our nation and how it contributes to our society.
"I encourage each of our new citizens to continue to integrate and help create communities where everyone contributes, belongs and thrives.
"Our new citizens have brought skills and talents from around the world that are enhancing the capabilities of our labour market and economy and in obtaining their citizenship are committing their future to Ireland," added Minister for Finance, Paschal Donohoe.
The new Irish citizens will undertake to faithfully observe the laws of the State and to respect its democratic values.
It takes eight months on average to process an application and nearly 31,000 applications were processed in 2024.
The vast majority of applicants continue to receive a decision within one year.
Carol Hernandez and Wilson Gomez are both originally from Colombia, and received their citizenships today.
''It's incredible to be able to say finally that I'm an Irish citizen. My husband is Irish , we met in Colombia actually, and that's why I'm here. Now I have a little baby, he's Irish, and now we are going to have three Irish passports," said Ms Hernandez.
I'm feeling very proud now to be an irish citizen and really happy because [of] all the effort and all the struggle I had passing through here in Ireland. But it's now my home andI feel very happy to be an Irish citizen," said Mr Gomez.
Alan Santos from Brazil, met and married his wife after he arrived in Ireland.
''I'm really emotional, you know, because it's been a long path to be here," he said.
"I came from Brazil to improve my English skills and further my career and I feel part of this community. I feel like the Irish people.
"My wife is Irish as well, we have kids, Irish kids so I'm glad to be here at this event," he added.
Sharon Bellam, originally from Mumbai, has lived in Ireland for 9 years.
''It's been a good experience for me. I have very good Irish colleagues, they've been very welcoming, very supportive," she said.
"It feels good. Now I can go anywhere in the Schengen area, any of the European countries, so that's feels very good."
