Just seven countries have made the updated travel green list, while six others have been removed from the existing list.
From Monday, people can travel from Cyprus, Finland, Germany, Iceland, Latvia, Lithuania and Poland without having to isolate for 14 days when they arrive in Ireland.
However, some of those countries have their own local rules and restrictions for people arriving.
All the countries on the list have a 14 day incidence rate of less than 25 per 100,000.
Meanwhile, Hungary, Italy, Slovakia, Greece, Norway and Estonia have been removed from the list.
It means only Finland, Latvia and Lithuania will remain from the existing list, with the other four countries newly added.
Foreign Affairs Minister Simon Coveney said the list will now be updated on a weekly basis until the EU's new travel approach comes into effect.
He said: "The changes announced today will come into effect on Monday.
"People should use our travel advice to carefully consider their need to go abroad and take into account the restrictions that other countries may have on travellers from Ireland.”
As part of the Government's COVID-19 medium-term, Ireland has agreed to 'broadly support' the EU's proposals for travel across the bloc - based on a three-level 'traffic light' system.
However, the approach will not be finalised for another month, and Ireland will continue to update the green list until then.