| Rank | Abbreviation | Meaning |
|---|
| ***** | UCAN | United Communities AIDS Network
| |
| ***** | UCAN | Uhlich Children Advantage Network
| |
| ***** | UCAN | University of Chicago Aeromedical Network
| |
| ***** | UCAN | Ultra-wideband Concepts for Ad hoc Networks
| |
| ***** | UCAN | Umpqua Community Action Network
| |
| ***** | UCAN | University Career Assistance Network
| |
| ***** | UCAN | Uhlich Children's Advantage Network
| |
| **** | UCAN | Universidad Cristiana Autónoma de Nicaragua
| |
| **** | UCAN | Universidade Catolica de Angola
| |
| **** | UCAN | United Communities Assistance Network
| |
| **** | UCAN | Unified Community Anchor Network
| |
| *** | UCAN | United Christian Artists Network
| |
| *** | UCAN | ulcerative colitis (UC)-associated neoplasia
| |
| *** | UCAN | Ukraine Citizen Action Network
| |
| *** | UCAN | United Community Action Network
| |
| *** | UCAN | Utilities Consumer Action Network
| |
| *** | UCAN | Unified Climate Access Network
| |
| *** | UCAN | United Coalition for Animals
| |
| *** | UCAN | University and College Access Network
| |
| *** | UCAN | Union Community Action Network
| |
| *** | UCAN | Universal Community Access Network
| |
| *** | UCAN | Utility Consumers' Action Network
| |
| *** | UCAN | University Career Advisory Network
| |
| *** | UCAN | University Counseling and Advising Network
| |
| *** | UCAN | Ukrainian Community Action Network
| |