First-class Bowling for Middlesex in 1990
| Name | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| PCR Tufnell | 6179 | 279 | 2622 | 74 | 6-79 | 35.43 | 2 | 0 |
| JE Emburey | 5655 | 275 | 1957 | 61 | 5-32 | 32.08 | 2 | 0 |
| NF Williams | 2935 | 93 | 1470 | 52 | 7-61 | 28.26 | 2 | 0 |
| ARC Fraser | 2621 | 103 | 1073 | 41 | 6-30 | 26.17 | 2 | 0 |
| NG Cowans | 2652 | 119 | 1208 | 38 | 5-67 | 31.78 | 1 | 0 |
| SP Hughes | 2318 | 73 | 1287 | 33 | 5-101 | 39.00 | 1 | 0 |
| MW Gatting | 336 | 21 | 138 | 7 | 4-2 | 19.71 | 0 | 0 |
| CW Taylor | 287 | 7 | 139 | 6 | 5-33 | 23.16 | 1 | 0 |
| PN Weekes | 480 | 17 | 264 | 4 | 2-115 | 66.00 | 0 | 0 |
| NR Taylor | 84 | 5 | 44 | 3 | 3-44 | 14.66 | 0 | 0 |
| DL Haynes | 210 | 7 | 113 | 2 | 1-18 | 56.50 | 0 | 0 |
| MA Roseberry | 132 | 5 | 115 | 2 | 1-41 | 57.50 | 0 | 0 |
| MJ Thursfield | 252 | 11 | 130 | 2 | 1-24 | 65.00 | 0 | 0 |
| MR Ramprakash | 246 | 7 | 164 | 2 | 1-17 | 82.00 | 0 | 0 |
| PR Downton | 7 | 0 | 4 | 1 | 1-4 | 4.00 | 0 | 0 |
| KR Brown | 96 | 4 | 65 | 1 | 1-16 | 65.00 | 0 | 0 |
| RO Butcher | 12 | 0 | 2 | 0 | ||||
| JC Pooley | 12 | 0 | 11 | 0 |
