| 2021-09-17 19:30:43September 17, 2021 | 1st XV  | 19:30:4319:30 |  Dublin University | Leinster League | Lansdowne Road |
| 2021-09-18 15:45:03September 18, 2021 | Old Wesley  | 15:45:0315:45 | J2 | Metro League - Division 2 | Energia Park |
| 2021-09-19 15:00:00September 19, 2021 | Old Belvedere  | 15:00:0015:00 | Under 20 Premier | McCorry Cup U20 | Ollie Campbell Park |
| 2021-09-19 15:00:14September 19, 2021 | J1 | 15:00:1415:00 | Old Wesley | Metro League - Divison 1 | Lansdowne Road |
| 2021-09-19 15:00:34September 19, 2021 | | 15:00:3415:00 | | Metro League - Divison 1 | Lansdowne Road |
| 2021-09-24 20:00:23September 24, 2021 | UCD  | 20:00:2320:00 | J1 | Metro League - Divison 1 | Belfield |
| 2021-09-25 15:00:24September 25, 2021 | J2 | 15:00:2415:00 |  Naas RFC | Metro League - Division 2 | Lansdowne Road |
| 2021-10-01 20:00:25October 1, 2021 | Coolmine RFC  | 20:00:2520:00 | J3 | Metro League - Division 5 | Coolmine |
| 2021-10-02 14:30:16October 2, 2021 | 1st XV | 14:30:1614:30 |  Cork Constitution | All Ireland League | Lansdowne Road |
| 2021-10-02 15:00:29October 2, 2021 | Old Wesley | 15:00:2915:00 | J2 | Albert O'Connell Cup | Energia Park |
| 2021-10-03 15:00:35October 3, 2021 | Under 20 Premier | 15:00:3515:00 | Dublin University | Friendly | Lansdowne Road |
| 2021-10-08 19:30:31October 8, 2021 | J3 | 19:30:3119:30 |  MU Barnhall RFC | Metro League - Division 5 | Lansdowne Road |
| 2021-10-09 14:30:32October 9, 2021 | Terenure  | 14:30:3214:30 | 1st XV | All Ireland League | Lakelands |
| 2021-10-10 15:00:23October 10, 2021 | J1 | 15:00:2315:00 | Dublin University | Metro League - Divison 1 | Lansdowne Road |
| 2021-10-10 15:00:43October 10, 2021 | MU Barnhall RFC | 15:00:4315:00 | J2 | Metro League - Division 2 | Parsonstown |
| 2021-10-15 19:30:09October 15, 2021 | Wanderers F.C.  | 19:30:0919:30 | J3 | Metro League - Division 5 | Lansdowne Road |
| 2021-10-16 14:30:40October 16, 2021 | UCC RFC  | 14:30:4014:30 | 1st XV | All Ireland League | The Mardyke |
| 2021-10-17 15:00:03October 17, 2021 | J2 | 15:00:0315:00 |  Blackrock College | Metro League - Division 2 | Lansdowne Road |
| 2021-10-17 15:00:36October 17, 2021 | Old Belvedere | 15:00:3615:00 | J1 | Metro League - Divison 1 | Ollie Campbell Park |
| 2021-10-29 19:30:36October 29, 2021 | J3 | 19:30:3619:30 |  St. Mary’s College | Metro League - Division 5 | Lansdowne Road |
| 2021-10-30 14:30:59October 30, 2021 | 1st XV | 14:30:5914:30 |  Young Munster | All Ireland League | Lansdowne Road |
| 2021-10-31 15:00:20October 31, 2021 | Wanderers F.C. | 15:00:2015:00 | J2 | Metro League - Division 2 | Lansdowne Road |
| 2021-10-31 15:00:26October 31, 2021 | J1 | 15:00:2615:00 | Terenure | Metro League - Divison 1 | Lansdowne Road |
| 2021-11-06 14:30:22November 6, 2021 | Clontarf  | 14:30:2214:30 | 1st XV | All Ireland League | Castle Avenue |
| 2021-11-07 14:30:29November 7, 2021 | J1 | 14:30:2914:30 | Clontarf | Metro League - Divison 1 | Lansdowne Road |
| 2021-11-07 14:30:35November 7, 2021 | Greystones  | 14:30:3514:30 | J2 | Metro League - Division 2 | Dr. Hickey Park |
| 2021-11-19 19:30:21November 19, 2021 | J3 | 19:30:2119:30 | Terenure | Metro League - Division 5 | Lansdowne Road |
| 2021-11-19 20:00:25November 19, 2021 | 1st XV | 20:00:2520:00 | Dublin University | All Ireland League | Lansdowne Road |
| 2021-11-20 14:30:04November 20, 2021 | J2 | 14:30:0414:30 | Clontarf | Metro League - Division 2 | Lansdowne Road |
| 2021-11-21 14:30:48November 21, 2021 | St. Mary’s College | 14:30:4814:30 | J1 | Metro League - Divison 1 | Templeville road |
| 2021-11-27 14:30:27November 27, 2021 | Garryowen  | 14:30:2714:30 | 1st XV | All Ireland League | Dooradoyle |
| 2021-11-27 14:30:50November 27, 2021 | J2 | 14:30:5014:30 | Old Wesley | Metro League - Division 2 | Lansdowne Road |
| 2021-11-28 14:30:21November 28, 2021 | CYM RFC  | 14:30:2114:30 | J3 | Metro League - Division 5 | Terenure Sports Club |
| 2021-11-28 14:30:57November 28, 2021 | Old Wesley | 14:30:5714:30 | J1 | Metro League - Divison 1 | Energia Park |
| 2021-12-03 19:30:39December 3, 2021 | J3 | 19:30:3919:30 | Coolmine RFC | Metro League - Division 5 | Lansdowne Road |
| 2021-12-04 14:30:41December 4, 2021 | UCD | 14:30:4114:30 | 1st XV | All Ireland League | Belfield |
| 2021-12-05 14:00:04December 5, 2021 | Naas RFC | 14:00:0414:00 | J2 | Metro League - Division 2 | Forenaughts |
| 2021-12-05 14:00:47December 5, 2021 | J1 | 14:00:4714:00 | UCD | Metro League - Divison 1 | Lansdowne Road |
| 2021-12-11 14:30:15December 11, 2021 | Ballynahinch RFC  | 14:30:1514:30 | 1st XV | All Ireland League | Ballymacarn Park |
| 2022-01-07 20:00:59January 7, 2022 | MU Barnhall RFC | 20:00:5920:00 | J3 | Metro League - Division 5 | Maynooth University |
| 2022-01-08 14:30:55January 8, 2022 | J2 | 14:30:5514:30 | MU Barnhall RFC | Metro League - Division 2 | Lansdowne Road |
| 2022-01-09 14:30:58January 9, 2022 | Dublin University | 14:30:5814:30 | J1 | Metro League - Divison 1 | College Park |
| 2022-01-14 19:30:27January 14, 2022 | J3 | 19:30:2719:30 | Wanderers F.C. | Metro League - Division 5 | Lansdowne Road |
| 2022-01-15 14:30:20January 15, 2022 | 1st XV | 14:30:2014:30 | Ballynahinch RFC | All Ireland League | Lansdowne Road |
| 2022-01-16 14:30:06January 16, 2022 | J1 | 14:30:0614:30 | Old Belvedere | Metro League - Divison 1 | Lansdowne Road |
| 2022-01-16 14:30:48January 16, 2022 | Blackrock College | 14:30:4814:30 | J2 | Metro League - Division 2 | Stradbrook |
| 2022-01-21 20:00:15January 21, 2022 | St. Mary’s College | 20:00:1520:00 | J3 | Metro League - Division 5 | Templeville road |
| 2022-01-22 14:30:17January 22, 2022 | UCD | 14:30:1714:30 | 1st XV | All Ireland League | Belfield |
| 2022-01-29 14:30:04January 29, 2022 | 1st XV | 14:30:0414:30 | Garryowen | All Ireland League | Lansdowne Road |
| 2022-01-30 14:30:18January 30, 2022 | Terenure | 14:30:1814:30 | J1 | Metro League - Divison 1 | Lakelands |
| 2022-01-30 14:30:58January 30, 2022 | J2 | 14:30:5814:30 | Wanderers F.C. | Metro League - Division 2 | Lansdowne Road |
| 2022-02-06 15:00:14February 6, 2022 | J2 | 15:00:1415:00 | Greystones | Metro League - Division 2 | Lansdowne Road |
| 2022-02-06 15:00:24February 6, 2022 | Clontarf | 15:00:2415:00 | J1 | Metro League - Divison 1 | Castle Avenue |
| 2022-02-11 20:00:25February 11, 2022 | Terenure | 20:00:2520:00 | J3 | Metro League - Division 5 | Lakelands |
| 2022-02-13 15:00:26February 13, 2022 | J1 | 15:00:2615:00 | St. Mary’s College | Metro League - Divison 1 | Lansdowne Road |
| 2022-02-13 15:00:42February 13, 2022 | Clontarf | 15:00:4215:00 | J2 | Metro League - Division 2 | Castle Avenue |
| 2022-02-18 19:30:39February 18, 2022 | J3 | 19:30:3919:30 | CYM RFC | Metro League - Division 5 | Lansdowne Road |
| 2022-02-19 14:30:48February 19, 2022 | Dublin University | 14:30:4814:30 | 1st XV | All Ireland League | College Park |
| 2022-02-25 20:00:00February 25, 2022 | 1st XV | 20:00:0020:00 | Clontarf | All Ireland League | Lansdowne Road |
| 2022-03-05 14:30:18March 5, 2022 | Young Munster | 14:30:1814:30 | 1st XV | All Ireland League | Tom Clifford Park |
| 2022-03-26 14:30:36March 26, 2022 | 1st XV | 14:30:3614:30 | UCC RFC | All Ireland League | Lansdowne Road |
| 2022-04-01 20:00:57April 1, 2022 | 1st XV | 20:00:5720:00 | Terenure | All Ireland League | Lansdowne Road |
| 2022-04-09 14:30:05April 9, 2022 | Cork Constitution | 14:30:0514:30 | 1st XV | All Ireland League | Templehill |
