| Abbreviation | Definition |
|---|---|
| ITB | Ilio Tibial Band |
| ITBS | Iliotibial Band Syndrome |
| ITBS | Iliotibial Tibial Band Syndrome |
| ITEA | International Tuba Euphonium Association |
| ITEOTWAWKI | It's The End Of The World As We Know It |
| ITF | International Turntabalist Federation |
| ITF | International Turntablist Federation |
| ITFL | In The Firing Line |
| ITM | Irish Traditional Music |
| ITMA | Irish Traditional Music Archive |
| ITSB | Institut Teknologi Sains Bandung |
| IVDK | Internationaler Verband der deutschen Kultur(in German) International Association of German Culture |
| IVGO | Irish Video Game Orchestra |
| IWABO | Iwrestledabearonce |
| IWB | inside the waist band |
| IWB | Inside Waist Band |
| IWNM | I Want New Music |
| IWSE | In Within Spin Entertainment |
| IWSO | Isle of Wight Symphony Orchestra |
| JABB | Jazz and Big Band |