Fianna Fáil appears set to almost double its number of Dail seats, according to an exit poll tonight.
The party led by Micheál Martin appears to have made a significant recovery since the 2011 election, the results poll conducted for The Irish Times by Ipsos, MRBI show.
Meanwhile, the results of the poll indicate that the Coalition parties have lost support since the election was called - with no upturn in the last few weeks of the campaign.
Support for Fine Gael has dropped to only 26.1pc from 36.1pc in the last general election - and Labour has fared much worse, receiving just under 8pc - a huge slump from the 19.5pc achieved in 2011.
Furthermore, support for Sinn Féin, Independents and smaller parties has increased since the last election, according to the poll.
The Irish Times by Ipsos MRBI took a sample of 5,260 randomly selected voters at 200 polling stations throughout all constituencies in the Republic of Ireland.
Voters were asked to complete a mock ballot paper on exiting the polling station.
First preference votes according to the poll:
Fine Gael 26.1pc; Labour 7.8pc; Fianna Fáil 22.9pc; Sinn Féin 14.9pc; AAA/PBP 3.6pc; Greens 3.5pc; Social Democrats 2.8pc; Renua 2.6pc; Others 28.3pc.
First preference compared to 2011:
Fianna Fáil took 17pc of the first preference vote, Sinn Féin 10pc and Others 17pc.