First-class Bowling for Middlesex in 1990 County Championship
| Name | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| PR Downton | 7 | 0 | 4 | 1 | 1-4 | 4.00 | 0 | 0 |
| NR Taylor | 84 | 5 | 44 | 3 | 3-44 | 14.66 | 0 | 0 |
| MW Gatting | 270 | 18 | 113 | 7 | 4-2 | 16.14 | 0 | 0 |
| CW Taylor | 287 | 7 | 139 | 6 | 5-33 | 23.16 | 1 | 0 |
| ARC Fraser | 2621 | 103 | 1073 | 41 | 6-30 | 26.17 | 2 | 0 |
| NF Williams | 2815 | 88 | 1430 | 49 | 7-61 | 29.18 | 2 | 0 |
| NG Cowans | 2490 | 115 | 1127 | 36 | 5-67 | 31.30 | 1 | 0 |
| JE Emburey | 5412 | 254 | 1911 | 57 | 5-32 | 33.52 | 2 | 0 |
| PCR Tufnell | 5693 | 254 | 2389 | 65 | 6-79 | 36.75 | 2 | 0 |
| SP Hughes | 1998 | 60 | 1121 | 28 | 5-101 | 40.03 | 1 | 0 |
| MJ Thursfield | 102 | 4 | 45 | 1 | 1-24 | 45.00 | 0 | 0 |
| DL Haynes | 210 | 7 | 113 | 2 | 1-18 | 56.50 | 0 | 0 |
| PN Weekes | 324 | 8 | 183 | 3 | 2-115 | 61.00 | 0 | 0 |
| MR Ramprakash | 204 | 5 | 147 | 2 | 1-17 | 73.50 | 0 | 0 |
| MA Roseberry | 66 | 3 | 74 | 1 | 1-58 | 74.00 | 0 | 0 |
| KR Brown | 36 | 2 | 49 | 0 |
