| IKO | Input Key Output
| Others |
| IKO | Integraal Kankercentrum Oost
| Others |
| IKO | Integral K Operator
| Others |
| IKO | Integral K Operators
| Others |
| IKO | Interantional Kiteboarding Organisation
| Others |
| IKO | Interfacultair Keuzevak Ontwikkelingsvraagstukken
| Others |
| IKO | International Karate Organisation
| Others |
| IKO | International Karate Organization
| Others |
| IKO | International Kite Organization
| Others |
| IKO | International Kiteboarding Organisation
| Others |
| IKO | International Kiteboarding Organization
| Others |
| IKO | International Kiterboarding Organization
| Others |
| IKO | International Kitesurfing Organisation
| Others |
| IKO | International Kyokushinkai Organization
| Others |
| IKO | Internet Knoten Osteuropa
| Others |
| IKO | Itial Keyword Offering
| Others |
| IKO | Nikolski, Alaska USA
| Others |