| 9-54 | JC Clay | Glamorgan v Northamptonshire | 1935 | f14951 |
| 8-43 | VE Jackson | Leicestershire v Glamorgan | 1956 | f21312 |
| 8-45 | JC Clay | Glamorgan v Essex | 1937 | f15868 |
| 8-49 | BL Muncer | Glamorgan v Lancashire | 1949 | f18406 |
| 7-57 | JE McConnon | Glamorgan v Lancashire | 1959 | f22738 |
| 7-98 | JE McConnon | Glamorgan v Essex | 1953 | f20014 |
| 7-140 | TPB Smith | Essex v Glamorgan | 1937 | f15868 |