1975 All-Ireland Under-21 Hurling Championship
The 1975 All-Ireland Under-21 Hurling Championship was the 12th staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964. The championship began on 9 April 1975 and ended on 12 October 1975.
Kilkenny entered the championship as the defending champions.
On 12 October 1975, Kilkenny won the championship following a 5-13 to 2-19 defeat of Cork in the All-Ireland final. This was their second All-Ireland title overall and their second title in succession.
Cork's Éamonn O'Sullivan was the championship's top scorer with 4-09.Results
Quarter-finals
Semi-finals
FinalFirst round
Semi-finals
FinalFinalSemi-finals
Final;Overall
| Rank | Player | County | Tally | Total | Matches | Average |
| 1 | Éamonn O'Sullivan | Cork | 4-09 | 21 | 5 | 4.25 |
| 2 | David O'Riordan | Limerick | 6-00 | 18 | 3 | 6.00 |
| 3 | Ger Fennelly | Kilkenny | 2-11 | 17 | 4 | 4.25 |
| 4 | Seán O'Farrell | Cork | 3-07 | 16 | 5 | 3.20 |
| 4 | Terry Brennan | Kilkenny | 3-07 | 16 | 4 | 4.00 |
| 4 | Billy Fitzpatrick | Kilkenny | 2-10 | 16 | 4 | 4.00 |
| 5 | Jimmy Barry-Murphy | Cork | 4-03 | 15 | 5 | 3.00 |
| 5 | Tom Collins | Cork | 4-03 | 15 | 5 | 3.00 |
| 5 | Bertie Óg Murphy | Cork | 0-15 | 15 | 5 | 3.00 |
