| UNESCO | United Nations Educational, Scientific & Cultural Organization; 국제연합교육과학문화기구 |
|---|---|
| UNFPA | United Nations Population Fund |
| UNG | uracil deoxyribonucleic acid glycosylase |
| ung. | unguentum; ointment; 연고 |
| UNHCR | United Nations High Commission for Refugees |
| UNICEF | United Nations International Children's Emergency Fund; 국제연합아동구호기금 |
| unilat | unilateral |
| UNIS | Urological Nursing Information System |
| univ | universal |
| unk, unkn | unknown |