Joe Schmidt has named the uncapped Jordan Larmour in his 36-man squad for the opening two games of the 2018 Six Nations.
Larmour, who only turned 20 in June, had been expected to earn a call-up after some excellent performances for Leinster in both the Pro14 and Champions Cup.
Munster’s Chris Farrell and Connacht star Bundee Aki, who both earned their first caps in the November Series are in also in the mix.
Captain Rory Best was named alongside fellow Ulster men Iain Henderson, Rob Herring and Jacob Stockdale.
Also included is Joey Carbery who recently returned to training after breaking his wrist Ireland duty last November and there is a recall for hooker Sean Cronin who missed out in the November series.
Munster's in form wingers Andrew Conway and Keith Earls also make the squad alongside Peter O'Mahony and CJ Stander who both recently signed new contracts with IRFU.
However, there is no room for the departing Simon Zebo, who said last week he was not giving up hope of featuring in the Six Nations this year.
Speaking about the selections, Schmidt said: "It's been great to witness some quality performances from provincial teams over the last seven weeks of European and derby matches, with a number of players performing well.
"There were some very tight decisions but it's great to see some competitive depth in a number of positions."
Ireland take on France in their opening game in Paris on February 3, followed by a clash against Italy in the Aviva Stadium.
Schmidt has had to do without a number of injured players including Jamie Heaslip, Sean O'Brien, Rhys Ruddock, Finlay Bealham, Tommy O'Donnell, Niall Scannell, Luke Marshall, Garry Ringrose, Jared Payne and Craig Gilroy.
Squad in full:
Rory Best (Banbridge/Ulster) c 106 caps
Jack Conan (Old Belvedere/Leinster) 5 caps
Sean Cronin (St Mary’s College/Leinster) 56 caps
Ultan Dillane (Corinthians/Connacht) 11 caps
Tadhg Furlong (Clontarf/Leinster) 19 caps
Cian Healy (Clontarf/Leinster) 73 caps
Iain Henderson (Ballynahinch/Ulster) 34 caps
Rob Herring (Ballynahinch/Ulster) 3 cap
Dave Kilcoyne (UL Bohemians/Munster) 22 caps
Dan Leavy (UCD/Leinster) 4 caps
Jack McGrath (St Mary’s College/Leinster) 42 caps
Jordi Murphy (Lansdowne/Leinster) 18 caps
Peter O’Mahony (Cork Constitution/Munster) 42 caps
Andrew Porter (UCD/Leinster) 3 caps
Quinn Roux (Galwegians/Connacht) 3 caps
James Ryan (UCD/Leinster) 4 caps
John Ryan (Cork Constitution/Munster) 11 caps
CJ Stander (Shannon/Munster) 18 caps
Devin Toner (Lansdowne/Leinster) 53 caps
Josh van der Flier (UCD/Leinster) 9 caps
Bundee Aki (Galwegians/Connacht) 2 caps
Joey Carbery (Clontarf/Leinster) 6 caps
Andrew Conway (Garryowen/Munster) 6 caps
Keith Earls (Young Munster/Munster) 62 caps
Chris Farrell (Young Munster/Munster) 2 caps
Robbie Henshaw (Buccaneers/Leinster) 31 caps
Rob Kearney (UCD/Leinster) 78 caps
Ian Keatley (Young Munster/Munster) 7 caps
Jordan Larmour (St Mary’s College/Leinster)
Kieran Marmion (Corinthians/Connacht) 18 caps
Fergus McFadden (Old Belvedere/Leinster) 32 caps
Luke McGrath (UCD/Leinster) 6 caps
Conor Murray (Garryowen/Munster) 59 caps
Johnny Sexton (St Mary’s College/Leinster) 68 caps
Rory Scannell (Dolphin/Munster) 3 caps
Jacob Stockdale (Belfast Harlequins/Ulster) 4 caps