| 251 |
Mitaboni ABC Girls |
Kathiani |
Secondary |
| 252 |
Mitaboni High Secondary School |
Kathiani |
Secondary |
| 253 |
Mithanga AIC Secondary School |
Mwala |
Secondary |
| 254 |
Miu ABC Kiamba Secondary School |
Kangundo |
Secondary |
| 255 |
Miu Boys Secondary School |
Mwala |
Secondary |
| 256 |
Miumbuni Secondary School |
Kathiani |
Secondary |
| 257 |
Miwani Secondary School |
Machakos |
Secondary |
| 258 |
Miwongoni Mixed Day Secondary School |
Machakos |
Secondary |
| 259 |
Mua Farm Secondary School |
Machakos |
Secondary |
| 260 |
Mua Hills Girls |
Machakos |
Secondary |
| 261 |
Muindi Mbingu Secondary School |
Machakos |
Secondary |
| 262 |
Mukalala Secondary School |
Yatta |
Secondary |
| 263 |
Mukalwa Secondary School |
Matungulu |
Secondary |
| 264 |
Mukusu Secondary School |
Masinga |
Secondary |
| 265 |
Mukuyuni Mixed Day Secondary School |
Mwala |
Secondary |
| 266 |
Mukuyuni Sa Secondary School |
Kangundo |
Secondary |
| 267 |
Mulaani Secondary School |
Kalama |
Secondary |
| 268 |
Mulingana Secondary School |
Kangundo |
Secondary |
| 269 |
Mulu Girls Secondary School |
Mwala |
Secondary |
| 270 |
Mumbuni Boys Secondary School |
Machakos |
Secondary |
| 271 |
Mumbuni Girls Secondary School |
Machakos |
Secondary |
| 272 |
Mungala Secondary School |
Machakos |
Secondary |
| 273 |
Murifarm Secondary School |
Masinga |
Secondary |
| 274 |
Musingini Secondary School |
Masinga |
Secondary |
| 275 |
Muthei Secondary School |
Mwala |
Secondary |
| 276 |
Muthembwa Secondary School |
Masinga |
Secondary |
| 277 |
Muthesya Secondary School |
Masinga |
Secondary |
| 278 |
Muthetheni Girls Secondary School |
Mwala |
Secondary |
| 279 |
Muthetheni Mixed Day |
Mwala |
Secondary |
| 280 |
Muthwani Sa Secondary School |
Mwala |
Secondary |
| 281 |
Muthwani Secondary School |
Athi River |
Secondary |
| 282 |
Mutula Secondary School |
Mwala |
Secondary |
| 283 |
Mutuyu Mixed Secondary School |
Machakos |
Secondary |
| 284 |
Mutwamwaki Secondary School |
Masinga |
Secondary |
| 285 |
Muumandu Secondary School |
Machakos |
Secondary |
| 286 |
Muumoni Sa Kiamba |
Matungulu |
Secondary |
| 287 |
Muusini Sa Secondary School |
Mwala |
Secondary |
| 288 |
Muvuti Boys High School |
Machakos |
Secondary |
| 289 |
Muvuti Girls Secondary School |
Machakos |
Secondary |
| 290 |
Mwaasua Secondary School |
Mwala |
Secondary |
| 291 |
Mwala Girls Secondary School |
Mwala |
Secondary |
| 292 |
Mwala School Secondary School |
Mwala |
Secondary |
| 293 |
Mwambathaana Secondary School |
Yatta |
Secondary |
| 294 |
Ndithini Secondary School |
Masinga |
Secondary |
| 295 |
Ndovoini Secondary School |
Athi River |
Secondary |
| 296 |
Ngalalya Secondary School |
Athi River |
Secondary |
| 297 |
Ngamba Mixed Secondary School |
Mwala |
Secondary |
| 298 |
Ngangani High School |
Yatta |
Secondary |
| 299 |
Ngelani High Secondary School |
Machakos |
Secondary |
| 300 |
Ngiini Secondary School |
Kathiani |
Secondary |