Dictionaries, Thesauruses, Pictures, and Press Releases
- Ummī
- Unam Sanctum
- Ungan Donjō
- Union of American Hebrew Congregations
- Union of Orthodox Jewish Congregations of America
- Unitas Fratrum:
- United Synagogue
- Universal Church of the Kingdom of God
- Universal House of Justice
- Universal love
- Unknowability of God
- Unknown Christ of Hinduism
- Unnō
- UOJCA
- Upa Veda
- Upadhye
- Upāgama
- Upanayana
- Upapātaka
- Uparama