| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 15-Oct-2016 | Joey Carbery | Ireland | 01-Nov-1995 | 20(349) |
| 17-Dec-2016 | Ross Byrne | Ireland | 08-Apr-1995 | 21(254) |
| 15-Oct-2016 | Gary Ringrose | Ireland | 26-Jan-1995 | 21(263) |
| 09-Dec-2016 | Adam Byrne | Ireland | 10-Apr-1994 | 22(244) |
| 20-Jan-2017 | Ross Moloney | Ireland | 11-May-1994 | 22(255) |
| 01-Apr-2017 | Dan Leavy | Ireland | 23-May-1994 | 22(314) |
| 13-Jan-2017 | Rory O'Loughlin | Ireland | 21-Jan-1994 | 22(358) |
| 15-Oct-2016 | Robbie Henshaw | Ireland | 12-Jun-1993 | 23(125) |
| 15-Oct-2016 | Josh van der Flier | Ireland | 25-Apr-1993 | 23(173) |
| 15-Oct-2016 | Luke McGrath | Ireland | 03-Feb-1993 | 23(254) |
| 15-Oct-2016 | Tadhg Furlong | Ireland | 14-Nov-1992 | 23(335) |
| 13-Jan-2017 | Jack Conan | Ireland | 29-Jul-1992 | 24(168) |
| 23-Oct-2016 | James Tracy | Ireland | 02-Apr-1991 | 25(205) |
| 23-Oct-2016 | Michael Kearney | Ireland | 29-Mar-1991 | 25(209) |
| 15-Oct-2016 | Rhys Ruddock | Ireland | 13-Oct-1990 | 26(3) |
| 15-Oct-2016 | Jack McGrath | Ireland | 11-Oct-1989 | 27(4) |
| 15-Oct-2016 | Ian Nagle | Ireland | 17-Oct-1988 | 27(363) |
| 23-Oct-2016 | Cian Healy | Ireland | 07-Oct-1987 | 29(17) |
| 23-Oct-2016 | Sean O'Brien | Ireland | 14-Feb-1987 | 29(252) |
| 15-Oct-2016 | Devin Toner | Ireland | 29-Jun-1986 | 30(109) |
| 15-Oct-2016 | Sean Cronin | Ireland | 06-May-1986 | 30(163) |
| 23-Apr-2017 | Fergus McFaddon | Ireland | 17-Jun-1986 | 30(311) |
| 20-Jan-2017 | Richard Strauss | Ireland | 29-Jan-1986 | 30(357) |
| 23-Oct-2016 | Jonathan Sexton | Ireland | 11-Jul-1985 | 31(104) |
| 15-Oct-2016 | Zane Kirchner | South Africa | 16-Jun-1984 | 32(121) |
| 15-Oct-2016 | James Heaslip | Ireland | 15-Dec-1983 | 32(305) |
| 15-Oct-2016 | Robert Kearney | Ireland | 26-Mar-1983 | 33(204) |
| 15-Oct-2016 | Isikeli Nacewa | Fiji | 22-Jul-1982 | 34(86) |
| 09-Dec-2016 | Hayden Triggs | New Zealand | 22-Feb-1982 | 34(291) |
| 23-Oct-2016 | Mike Ross | Ireland | 21-Dec-1979 | 36(307) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).