| Stella Maris East Coast Skiff Regatta | Ringsend, Dublin | Non | 10/06/2023 | 31/05/2023 |
| Munster Branch Regatta | National Rowing Centre Cork | Full | 10/06/2023 | 31/05/2023 |
| Roscarbery Coastal Fours Championship Regatta | Glanore, Cork | Non | 11/06/2023 | 31/05/2023 |
| Rushbrooke Coastal Fours Championship Regatta | Cobh Town, Cork | Non | 11/06/2023 | 31/05/2023 |
| Dalkey East Coast Skiff Regatta | Scots Mans Bay, Dublin | Non | 17/06/2023 | 07/06/2023 |
| Athlone Regatta | Coosan Point, Athlone | Non | 17/06/2023 | 07/06/2023 |
| Callinafercy Traditional Kerry 4-oar Regatta | Callinafercy, Kerry | Non | 18/06/2023 | 07/06/2023 |
| Cork Regatta | National Rowing Centre, Cork | Full | 24/06/2023 | 14/06/2023 |
| East Ferry Coastal Fours Championship Regatta | Yankee Pier Aghada, Cork | Non | 25/06/2023 | 14/06/2023 |
| Myross Coastal Fours Championship Regatta | Union Hall, Cork | Non | 25/06/2023 | 14/06/2023 |
| Rowing Ireland 1K Classic | National Rowing Centre Cork | Non | 01/07/2023 | 21/06/2023 |
| Skerries East Coast Skiff Regatta | Skerries, Dublin | Non | 01/07/2023 | 21/06/2023 |
| Fermoy Sprint Regatta | Fermoy | Non | 02/07/2023 | 21/06/2023 |
| Whitegate Coastal Fours Championship Regatta | Whitegate Club House, Cork | Non | 02/07/2023 | 21/06/2023 |
| Fingal East Coast Skiff Regatta | Balbriggan, Dublin | Non | 08/07/2023 | 28/06/2023 |
| Castletownshend Coastal Four Championship Regatta | Castletownshend | Non | 09/07/2023 | 28/06/2023 |
| St. Kearns Slaney Cot Regatta | Bannow Bay, Co. Wexford | Non | 09/07/2023 | 28/06/2023 |
| Whitegate Coastal Fours Championship Regatta | Whitegate Club House, Cork | Non | 09/07/2023 | 28/06/2023 |
| Irish Rowing Championships | National Rowing Centre, Cork | Full (Championships) | 14/07/2023 | 05/07/2023 |
| Edermine Ferry Slaney Cot Regatta | Edermine, Enniscorthy, Co. Wexford | Non | 15/07/2023 | 05/07/2023 |
| Cork County Coastal Championship | TBC | Non | 16/07/2023 | 05/07/2023 |
| Portmagee Regatta | Ballinskelligs | Non | 22/07/2023 | 12/07/2023 |
| Beach Sprints Qualification Event | Ballinskelligs | Non | 23/07/2023 | 12/07/2023 |
| Courtmacsherry Timber Yawl Regatta | Courtmacsherry | Non | 29/07/2023 | 19/07/2023 |
| Swift Irish Coastal Championships | Portnoo | Non (Championships) | 29/07/2023 | 19/07/2023 |
| Ferrycarrig Slaney Cot Regatta | Ferrycarrig, Co. Wexford | Non | 30/07/2023 | 19/07/2023 |
| Passage West Coastal Fours Championship Regatta | The Quay Wall, Passage West, Cork | Non | 30/07/2023 | 19/07/2023 |
| Carrick On Shannon Sprint Regatta | Carrick on Shannon | Non | 06/08/2023 | 26/07/2023 |
| Castletownbere Regatta | Castletownbere | Non | 06/08/2023 | 26/07/2023 |
| Killurin Slaney Cot Regatta | Killurin Quay, Co. Wexford | Non | 06/08/2023 | 26/07/2023 |
| Wicklow East Coast Skiff Regatta | Wicklow | Non | 07/08/2023 | 26/07/2023 |
| Bantry Regatta | Bantry Aerodome | Non | 12/08/2023 | 02/08/2023 |
| Shandon Masters Regatta | Marina Cork | Full | 12/08/2023 | 02/08/2023 |
| Portmagee Traditional Kerry 4-oar Regatta | Portmagee, Kerry | Non | 13/08/2023 | 02/08/2023 |
| Irish Coastal Fixed Seat Rowing Championships | National Rowing Centre, Cork | Non (Championships) | 19/08/2023 | 09/08/2023 |
| Neptune Masters Regatta | Islandbridge - Dublin | Non | 19/08/2023 | 09/08/2023 |
| Kincasslagh Regatta | Carrickfinn beach, Co Donegal | Non | 26/08/2023 | 16/08/2023 |
| Row The Rock Challenge | South Strand in Skerries | Non | 02/09/2023 | 23/08/2023 |
| Kenmare Regatta | Kenmare | Non | 09/09/2023 | 30/08/2023 |
| Courtmacsherry Regatta | Courtmacsherry | Non | 16/09/2023 | 06/09/2023 |
| Courtmacsherry Regatta | Courtmacsherry | Non | 16/09/2023 | 06/09/2023 |
| New Ross HOR | New Ross | Non | 23/09/2023 | 13/09/2023 |
| Fingal Long Distance/ ChallengeRow | Around Lambay Island, Balbriggan | Non | 23/09/2023 | 13/09/2023 |
| Tullamore Time Trial HOR | Canal Offaly | Non | 30/09/2023 | 20/09/2023 |
| St Michaels Traditional HOR | O'Briens Bridge | Non | 07/10/2023 | 27/09/2023 |
| Bann Head | River Bann Coleraine | Non | 21/10/2023 | 11/10/2023 |
| Coosan Lough Head | Coosan Point, Athlone | Non | 21/10/2023 | 11/10/2023 |
| Castleconnell Head | Castleconnell | Non | 28/10/2023 | 18/10/2023 |
| Erne 4's HOR | Enniskillen | Non | 11/11/2023 | 01/11/2023 |
| Skibbereen Head | Marina Cork | Non | 11/11/2023 | 01/11/2023 |
| Lagan Autumn HOR | River Lagan Belfast | Non | 18/11/2023 | 08/11/2023 |
| Lagan Autumn HOR | River Lagan Belfast | Non | 18/11/2023 | 08/11/2023 |
| Irish Provinces Indoor Rowing Championships | Limerick | Full | 25/11/2023 | 15/11/2023 |
| Head Of The Shannon | Carrick on Shannon | Non | 02/12/2023 | 22/11/2023 |
| Muckross HOR | National Rowing Centre Cork | Non | 02/12/2023 | 22/11/2023 |