| Term | Full Form | Category |
|---|---|---|
| IKU | I Know You | Others |
| IKU | Industrie Koot Utrecht | Others |
| IKU | Institut Kesihatan Umum | Others |
| IKU | Intelligent Key Unit | Others |
| IKU | Internacia Kongresa Universitato | Others |
| IKU | internal K units | Others |
| IKU | International Karate Union | Others |
| IKU | International Kennel Union | Others |
| IKU | Inuktitut | Others |