| Type: | Under-21 |
| Year: | 1974 |
| Dates: | 24 April 1974 - 8 September 1974 |
| Teams: | 14 |
| Munster: | Waterford |
| Leinster: | Kilkenny |
| Ulster: | Antrim |
| Matches: | 13 |
| Team: | Kilkenny |
| Titles: | 1st |
| Captain: | Ger Fennelly |
| Team2: | Waterford |
| Captain2: | Pat McGrath |
| Topscorer: | Billy Fitzpatrick (4-14) Tom Casey (2-20) |
| Previous: | 1973 |
| Next: | 1975 |
The 1974 All-Ireland Under-21 Hurling Championship was the 11th staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964. The championship began on 24 April 1974 and ended on 8 September 1974.
Cork entered the championship as the defending champions, however, they were defeated by Clare in the Munster semi-final.
On 8 September 1974, Kilkenny won the championship following a 3-08 to 3-07 defeat of Waterford in the All-Ireland final at Semple Stadium.[1] This was their first All-Ireland title.
Kilkenny's Billy Fitzpatrick and Waterford's Tom Casey were the championship's joint top scorers.
Quarter-final
Semi-finals
Final
First round
Semi-finals
Final
Final
Semi-finals
Final
| Rank | Player | County | Tally | Total | Matches | Average |
|---|---|---|---|---|---|---|
| 1 | Billy Fitzpatrick | Kilkenny | 4-14 | 26 | 4 | 6.50 |
| Tom Casey | Waterford | 2-20 | 26 | 5 | 5.20 | |
| 2 | Mossie McNamara | Waterford | 5-04 | 19 | 5 | 3.80 |
| Brendan Mansfield | Waterford | 3-10 | 19 | 5 | 3.80 | |
| 3 | Pat Mulcahy | Kilkenny | 3-07 | 16 | 4 | 4.00 |
| 4 | Vinny Holden | Dublin | 3-06 | 15 | 2 | 7.50 |
| 5 | Paul Moore | Waterford | 4-00 | 12 | 5 | 2.40 |
| Liam Power | Waterford | 2-06 | 12 | 5 | 2.40 |