| Name | Club | E1 | Pld | New | +/- |
|---|---|---|---|---|---|
| Bill Lambert | Barry | 1314 | 10 | 1334 | +20 |
| Stephen Lambourne | Caerphilly | 1557 | 7 | 1627 | +70 |
| Peter Lancaster | Cardiff | 1605 | 4 | 1592 | -13 |
| David Lewis | Rhondda | 1671 | 10 | 1655 | -16 |
| Konor Lewis | Cardiff | 981 | 0 | 981 | 0 |
| Windsor Lewis | Barry | 1260 | 13 | 1278 | +18 |
| Cyril Ley | Pentyrch | 1727 | 8 | 1755 | +28 |
| Steve Lindsay | Pentyrch | 1870 | 5 | 1857 | -13 |
| Richard Livermore | Pentyrch | 1582 | 0 | 1582 | 0 |
| David Llewellyn | Aberdare | 1999 | 11 | 1981 | -18 |
| Howard Lloyd | Pontypridd | 1404 | 12 | 1398 | -6 |
| Matthew Lunnon | Pentyrch | 1270 | 7 | 1263 | -7 |