1999 All-Ireland Under-21 Hurling Championship
The 1999 All-Ireland Senior Hurling Championship was the 36th staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964. The championship began on 2 June 1999 ended on 21 September 1999.
Cork entered the championship as the defending champions, however, they were beaten by Clare in the Munster semi-final.
On 19 September 1999, Kilkenny won the championship following a 1-13 to 0-14 defeat of Galway in the All-Ireland final. This was their 7th All-Ireland title overall and their first in five championship seasons.
Kilkenny's Henry Shefflin was the championship's top scorer with 4-24.Results
Quarter-finals
Semi-finals
FinalMunster Under-21 Hurling Championship
Quarter-finals
Semi-finals
FinalUlster Under-21 Hurling Championship
Semi-finals
FinalAll-Ireland Under-21 Hurling Championship
Semi-finals
Final;Top scorers overall
| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Henry Shefflin | Kilkenny | 4-24 | 36 | 4 | 9.00 |
| 2 | Paddy O'Brien | Tipperary | 2-22 | 28 | 4 | 7.00 |
| 3 | Declan Browne | Tipperary | 5-06 | 21 | 4 | 5.25 |
| 4 | Eddie Brennan | Kilkenny | 3-08 | 17 | 4 | 4.25 |
| 4 | Eugene Cloonan | Kilkenny | 1-14 | 17 | 2 | 8.50 |
