| Abbreviation | Definition |
|---|---|
| KMSL | King Mountain Services, Ltd. |
| KMSS | Kongsberg Maritime Ship Systems |
| KMT | Killeen Machine Tool |
| KMTC | Knutsford Musical Theatre Company |
| KNB | Keg N Bottle |
| KNC | Kangaroo Net Company |
| KNC | Kunda Nordic Cement |
| KND | Kobus Naval Design |
| KNEC | Kinetic Corporation |
| KNHC | Korea National Housing Corporation |
| KNI | Korea Network Intelligence Company, Ltd. |
| KNI | Kurt Noble Inc |
| KNI | Kurt Noble, Inc. |
| KNM | Kongelige Norske Marine |
| KNO | Kara Network Online |
| KNOC | Korea National Oil Corporation |
| KNP | Korea Netizen Profile |
| KNPC | Kuwait National Petroleum Corporation |
| KNR | Knotted Note Radio |
| KNS | Toen Natie Sembcorp (Thailand), LTD. |