USIM
| Acronym | Definition |
|---|---|
| USIM | Universal Subscriber Identity Module |
| USIM | User Services Identity Module |
| USIM | Universiti Sains Islam Malaysia |
| USIM | User Services Identity Module (UMTS) |
| USIM | United States International Mission (US and Vietnam) |
| USIM | UMTS (Universal Mobile Telecommunications System) Subscriber Identity Module (information storage and connection smartcard) |