Mike Ruddock has named nine Munster players who include Cork Constitution's front row Max Abbott and Rory Burke, scrum half Ryan Foley and second row Darragh Moloney.
Diarmuid Dee, Young Munster back-row forward has also been named along with his fellow club player, centre Dan Goggin.
Munster Academy and Garryowen player Alex Wootton has been selected along with UL Bohs players Michael Lynch and Jack O'Donoghue, who also represents the Munster Academy.
IRB Junior World Championship which will take place in New Zealand in June.
Ireland share pool B with France, Fiji and Wales and open their tournament against France on Monday, 2nd June in QBE Stadium, Auckland.
Ireland U-20 Squad (v Scotland U20, JWC warm-up game - Sunday, 11th May, 11.30am, Murrayfield)
Max Abbott (Cork Constitution - Munster)
Rory Burke (Cork Constitution - Munster)
David Busby (Queens - Ulster)
Ross Byrne (UCD - Leinster)
Denis Coulson (Lansdowne - Leinster)
William Dardis (UCD - Leinster)
Diarmaid Dee (Young Munster - Munster)
Dylan Donnellan (UCD - Leinster)
Ryan Foley (Cork Constitution - Munster)
Ciaran Gaffney (Galwegians - Connacht)
Stephen Gardiner (Lansdowne - Leinster)
Dan Goggin (Young Munster - Munster)
Cian Kelleher (Lansdowne - Leinster)
Michael Lynch (UL Bohemians/ Munster)
Nick McCarthy (UCD - Leinster)
Conor McKeon (Lansdowne - Leinster)
Darragh Moloney (Cork Constitution - Munster)
Rory Moloney (Buccaneers - Connacht)
Ross Molony (UCD - Leinster)
Joshua Murphy (UCD/Leinster)
Sean O'Brien (Galwegians - Connacht) (Capt)
Jack O'Donoghue (UL Bohemian - Munster)
Garry Ringrose (UCD - Leinster)
Peter Robb (Old Belvedere - Leinster)
Frank Taggart (Belfast Harlequins - Ulster)
Peadar Timmins (UCD - Leinster)
Craig Trenier (Terenure - Leinster)
Alex Wootton (Garryowen - Munster)
Pool B Fixtures - Junior World Championship 2013(All times are local) -
02 Jun, 15:35 Wales v Fiji ECOLight Stadium, Pukekohe
02 Jun, 17:35 France v Ireland QBE Stadium, Auckland
06 Jun, 15:35 France v Fiji ECOLight Stadium, Pukekohe
06 Jun, 17:35 Wales v Ireland ECOLight Stadium, Pukekohe
10 Jun, 13:35 Ireland v Fiji QBE Stadium, Auckland
10 Jun, 15:35 Wales v France QBE Stadium, Auckland