| 257 | AH Bakewell | Northamptonshire v Glamorgan | 1933 | f14235 |
| 233 | MJL Turnbull | Glamorgan v Worcestershire | 1937 | f15797 |
| 230* | RT Simpson | Nottinghamshire v Glamorgan | 1950 | f18644 |
| 228* | WM Woodfull | Australians v Glamorgan | 1934 | f14740 |
| 228* | RC Fredericks | Glamorgan v Northamptonshire | 1972 | f29315 |
| 227 | BA Godleman | Derbyshire v Glamorgan | 2019 | f59510 |
| 224* | RJ Bailey | Northamptonshire v Glamorgan | 1986 | f36468 |
| 224* | AJ Moles | Warwickshire v Glamorgan | 1990 | f38830 |
| 222 | LG Crawley | Essex v Glamorgan | 1928 | f12498 |
| 222 | SD Peters | Northamptonshire v Glamorgan | 2011 | f53304 |
| 213 | CEB Rice | Nottinghamshire v Glamorgan | 1978 | f32205 |
| 212* | Javed Miandad | Glamorgan v Leicestershire | 1984 | f35264 |
| 204* | RC Ontong | Glamorgan v Middlesex | 1984 | f35255 |
| 203 | PA Cottey | Glamorgan v Leicestershire | 1996 | f42530 |
| 201 | WGA Parkhouse | Glamorgan v Kent | 1956 | f21292 |
| 201* | CH Lloyd | West Indians v Glamorgan | 1969 | f27800 |
| 201* | CH Lloyd | West Indians v Glamorgan | 1976 | f31203 |
| 200* | MJL Turnbull | Glamorgan v Northamptonshire | 1933 | f14235 |