Encyclopedias, Almanacs, Transcripts, and Maps
- The Workers and Merchants of Leeds
- The World Bank Group
- The World Health Organization (WHO)
- The World Meteorological Organization (WMO)
- Theano
- Theater and Drama
- Theatrical Dance
- Theodorakis, Mikis (b. 1925)
- Theodore Canot
- Theodore Martin Hesburgh
- Theodore Newton Vail
- Theodorus Jacobus Frelinghuysen
- Theology, Black
- Theorists of War
- Thick Journals
- Thicketty Fort (Fort Anderson), South Carolina
- Thiers, Louis-Adolphe
- Thin Journals
- Third Amendment
- Third Parties