| Acronym | Sense | Language | Topics | 
| STA | Siebenten-Tags-Adventisten | In German | → Christianity | 
| SVD | Society of Divine Word | In English | → Roman catholic church | 
| SVM | Sisters of Visitation of the Most Blessed Virgin | In English | → Roman catholic church | 
| SWAIC | Program on Southwest Asia and Islamic Civilization | In English | → Islam → Area studies
 | 
| TAC | Traditional Anglican Communion | In English | → Organizations and associations → Protestant churches
 | 
| TDNT | Theological Dictionary of the New Testament | In English | → Encyclopaedias, reference works | 
| TEL | Tutmonda Ekumena Ligo | In Esperanto | → Organizations and associations | 
| TFP | Tradition Famille Propriété | In French | → Roman catholic church → Modern spiritual movements
 | 
| ThLZ | Theologische Literaturzeitung | In German | → Serial publications, periodicals → Literature
 | 
| TOLE | Tutmonda Ortodoksa Ligo Esperantista | In Esperanto | → Organizations and associations → 271
 → Artificial languages (linguistics)
 | 
| TOR | Third Order Regular | In English | → Roman catholic church | 
| TPMS | Tai Po Methodist School | In English | → Christianity → Education
 | 
| TRO | Tamil Rehabilitation Organisation | In English |  | 
| TZ | Theologische Zeitschrift | In German | → Serial publications, periodicals | 
| UAM | United Adult Ministries | In English | → Christianity | 
| UAOD | The United Ancient Order Of Druids | In English | → Organizations and associations → Modern spiritual movements
 | 
| UBE | Université Bouddhique Européenne (www.bouddhisme-universite.org) | In French | → Education → Buddhism
 | 
| UBF | Union Bouddhiste de France | In French | → Organizations and associations → Buddhism
 → France
 | 
| UCJG | Unions Chrétiennes de Jeunes Gens | In French | → Organizations and associations → Christianity
 | 
| UCKG | Universal Church of the Kingdom of God = EURD | Église Universelle du Royaume de Dieu | In French
 = IURD | Iglesia Universal del Reino de Dios | In Spanish
 = IURD | Igreja Universal do Reino de Deus | In Portuguese
 
 | In English | → Christianity → Modern spiritual movements
 | 
| UCL | Université Catholique de Louvain | In French | → Roman catholic church → Higher education, universities
 | 
| UCSG | Universidad Católica Santiago de Guayaquil | In Spanish | → Roman catholic church → Higher education, universities
 | 
| UGIF | Union Générale des Israélites de France | In French | → Organizations and associations → Political parties and movements
 → Judaism
 → France
 | 
| UIEA | Universala Islama Esperanto-Asocio | In Esperanto | → Associations → Islam
 → Artificial languages (linguistics)
 | 
| UMI | Ursulines of Mary Immaculate | In English | → Roman catholic church | 
| UOIF | Union des Organisations Islamiques de France (www.uoif-online.com) | In French | → Organizations and associations → Islam
 → France
 | 
| UPFC | Utah Partnerships For Christ (www.upfc.org) | In English | → Christianity → United States
 | 
| VBG | Vereinigte Bibelgruppen in Schule, Universität, Beruf | In German | → Organizations and associations → Christianity
 → Belgium
 | 
| VC | Vincentian Congregation | In English | → Christianity | 
| VcF | Verein contra Fundamentalismus | In German | → Organizations and associations | 
| VCLM | Vlaams Centrum Liturgische Muziek | In Dutch | → Music → Belgium
 | 
| VEG | Vrije Evangelische Gemeenten | In Dutch | → Protestant churches | 
| VIOZ | Vereinigung Islamischer Organisationen Zürich | In German | → Organizations and associations → Islam
 | 
| VISBA | Volontari Internazionali Scuola Beato Angelico | In Italian | → Organizations and associations → Christianity
 | 
| VPRO | Vrijzinnig Protestantse Radio Omroep | In Dutch | → Telecommunications → Protestant churches
 | 
| VSKO | Vlaams Secretariaat van het Katholiek Onderwijs | In Dutch | → Organizations and associations → Education
 → Roman catholic church
 → Belgium
 | 
| VT | Vetus Testamentum | In Latin | → Christianity | 
| VVKBaO | Vlaams Verbond van het Katholiek Basisonderwijs | In Dutch | → Organizations and associations → Education
 → Roman catholic church
 → Belgium
 | 
| VVKBuO | Vlaams Verbond van het Katholiek Buitengewoon Onderwijs | In Dutch | → Organizations and associations → Education
 → Roman catholic church
 → Belgium
 | 
| VVKHO | Vlaams Verbond van het Katholiek Hoger Onderwijs | In Dutch | → Organizations and associations → Education
 → Roman catholic church
 → Belgium
 | 
| VVKSO | Vlaams Verbond van het Katholiek Secundair Onderwijs (www.vvl-onderwijs.be) | In Dutch | → Organizations and associations → Education
 → Roman catholic church
 → Belgium
 | 
| WASP | White Anglo-Saxon Protestant | In English | → Politics → Protestant churches
 | 
| WBS | Wesley Biblical Seminary (www.wbs.edu) | In English | → Higher education, universities | 
| WI | (Die) Welt des Islams | In German | → Serial publications, periodicals → Islam
 | 
| WMO | Worldwide Missionary Outreach (www.wmo.org) | In English | → Organizations and associations → Christianity
 | 
| YMBA | Young Men's Buddhist Association (www.ymba.org) | In English | → Associations → Buddhism
 | 
| YMCA | Young Men's Christian Association (www.ymca.int) | In English | → Associations → Christianity
 | 
| ZAW | Zeitschrift für die alttestamentliche Wissenschaft | In German | → Serial publications, periodicals → Christianity
 | 
| ZCFC | Zaandamse Christelijke Football Club | In Dutch | → Organizations and associations → Football and rugby
 → Christianity
 → Netherlands
 | 
| ZJK | Zentrum für Jüdische Kulturgeschichte | In German | → Organizations and associations → Language, linguistics, literature
 → Geography, biography, history
 → Civilization, culture, progress
 → Judaism
 | 
| ZKG | Zeitschrift für Kirchengeschichte | In German | → Serial publications, periodicals → Roman catholic church
 → History
 | 
| ZNW | Zeitschrift für die Neutestamentliche Wissenschaft und die Kunde der Älteren Kirche | In German | → Serial publications, periodicals | 
| ZThK | Zeitschrift fur Theologie und Kirche | In German | → Serial publications, periodicals → Roman catholic church
 | 
| ZVD | Zen-Vereinigung Deutschland (www.zen-vereinigung.de) | In German | → Organizations and associations → Buddhism
 → Germany
 | 
| ΙΧΘΥΣ | Ιησους Χριστος Θεου Υιος Σωτηρ | In Ancient Greek | → Christianity | 
| תנ״ך | תורה, נביאים וכתובים | In Hebrew | → Judaism |