Religion and spirituality
U
- UdugClass of demons in ancient Mesopotamian mythology
- UFO religionReligion which includes beliefs about aliens
- UfologyStudy of UFOs
- Ujjain SimhasthaHindu religious mela held every 12 years
- Ulu'l-amrThose charged with authority in Islam
- UmrahIslamic pilgrimage to Mecca
- UnderworldWorld of the dead in various mythologies
- UnicornLegendary single-horned horse-like creature
- Union Church (Australia)In Australia, a Union Church is a church building owned and maintained by a local trust an
- Unitarian Church of South AustraliaThe Unitarian Church of South Australia, Inc., is an independent and self-governed church
- Unitarian UniversalismNon-creedal liberal religious movement
- Unitarian Universalist Church of BerkeleyThe Unitarian Universalist Church of Berkeley (UUCB) was founded as the First Unitarian Ch
- Unitarian Universalist Church of Medford and the Osgood HouseThe Unitarian Universalist Church of Medford and The Osgood House are a historic Unitarian
- UnitarianismNontrinitarian sect of Christianity
- United and uniting churchesUnion of Protestant churches of different creeds
- Universal House of JusticeElected institution governing the worldwide Baháʼí community
- Universal resurrectionBelief that most or all the dead who have ever lived will be resurrected
- Universalism and the Latter Day Saint movementChristian universalism was a theology widespread in the early United States coinciding wit
- Unleavened breadBread prepared without raising agents such as yeast
- Unlimited atonementNon-Calvinist Protestant doctrine
- UpanishadsAncient Sanskrit religious and philosophical texts of Hinduism
- UR GroupItalian esotericist organization
- UstadHonorific title used for a master in various languages of the Muslim world
- UšumgalluUšumgallu or Ushumgallu (Sumerian: 𒁔 𒃲ušum.gal, "Great Dragon") was one of the three hor
- UttuMesopotamian goddess

