| UBN | Union Bank of Nigeria | 尼日利亚联合银行 |
| UBN | Ultranet Banner Network | Ultranet横幅网络 |
| UBN | United Bear Network | 联合熊网络 |
| UBN | Ukrainian Broadcast Network | 乌克兰广播网 |
| UBN | United Broadband Networks | 联合宽带网络 |
| UBN | United Blood Nation (gang) | 联合血统（帮派） |
| UBN | Unity Broadcasting Network, Inc. | 联合广播网络公司。 |
| UBN | Ukraine Banner Network | 乌克兰旗帜网 |
| UBN | Unity Broadcasting Network | Unity广播网 |
| UBN | urobilin(urohematin) | 尿胆素 |