- The Old Man and the Sea
- The old Musical Instrument Terrace in Wuhan
- The Old Regime and the Revolution
- the old urban area in China
- theological seminary
- theological view of history
- theological virtues
- Theologico-Political Treatise
- theology
- theology of cross
- Theology of Hope
- theology of word of God
- The Olympic Congress
- The Olympic Museum
- The Olympic Partner Programme
- Theon
- Theon of Alexandria
- Theon of Alexandria (4世纪晚期)
- Theon of Smyrna
- Theopaschites
- the open-air dramatic stage in Norbulingka
- The Open Ended Group
- the open group architecture framework
- the Open-pit Slopes of Benxi Steel Group Corporation’s Nanfen Iron Ore Mine
- The Open Society and Its Enemies