The Department of Justice has said a further 440 refugees have been cleared to travel from Greece to Ireland, bringing the total to 900.
The Government pledged to take in a total of 4,000 refugees under the Irish Refugee Protection Programme.
However, just half of that number will have arrived by the end of the year.
Ireland has taken in 1,244 refugees to date from countries such as Syria since the programme was announced in 2015.
There are two separate schemes under which refugees come to Ireland.
Under what is known as the resettlement programme, the Government has committed to taking in 1,040 people from Lebanon.
In total, 785 people have arrived so far and the Government says the remaining 255 will arrive by the end of the year.
The relocation programme takes in people from refugee camps in Greece and Italy.