UCNB
| Acronym | Definition |
|---|---|
| UCNB | Union Center National Bank (Union, New Jersey) |
| UCNB | United Credit National Bank (Sioux Falls, SD) |
| UCNB | United Communities National Bank (various locations) |
| UCNB | University College New Brunswick (Canada) |
| UCNB | Ultrasound-Guided Cutting Needle Biopsies (oncology) |