| There is much Simple Happiness to be had at Hambantota | Raffel | Loris | 1949 | V | 3 | 105 - 108 | General |
| There Were No Cloud Damsels & Lightning Princesses in Sinhala Paintings | Wijesekera | Samskrti | 1984 | 18 | 1 | 9 - 16 | General |
| Things I Have Seen & Heard - 2 | Wickwar | Loris | 1949 | V | 3 | 109 - 113 | General |
| Things Swiss & Ceylonese | G | Journal of the D.B.U. | 1936 | XXV | 3 | 92 - 97 | General |
| Third Mid-Winter Waterfowl (Duck) Count in Sri Lanka, The - January1986 | Hoffmann | Loris | 1986 | XVII | 4 | 142 - 144 | General |
| Third Supplementary Paper on The Monumental Remains of the Dutch East India Company of Ceylon | De Vos | Journal of the Royal Asiatic Society | 1905 | XVIII | 56 | 393 - 396 | History |
| This Rich Mud - Ratnapura, City of Gems | Wijetunga | Ceylon Observer Pictorial | 1966 | N/A | N/A | N/A | General |
| Threat to our Environment | Jaya Raj | Loris | 1980 | XV | 3 | 173 - 174 | General |
| Three Chola Invasions of Ceylon Not Recorded in the Mahavamsa | Paranavitana | Journal of the Royal Asiatic Society | 1929 | XXXI | 82 | 384 - 387 | History |
| Three New Cyprinoids, A New Catfish & Variations Among Some Cyprinoids & an Anabantoid of Ceylon | Deraniyagala | Spolia Zeylanica | 1958 | 28 | 2 | 129 - 138 | General |
| Three New Species of Montane Crabs from the Central Mountains of Sri Lanka | Bahir | Journal of South Asian Natural History | 1998 | 3 | 2 | 197 - 212 | General |
| Three Peaceful Days in the Jungle | Poulier | Loris | 1979 | XV | 1 | 33 - 34 | General |
| Three Pilot Projects for National Service | N/A | Ceylon Today | 1961 | 10 | 9 | 14 - 16 | General |
| Three Species of Vermitade Reported from Batticaloa | Dharmaretnam | Loris | 1994 | XX | 4 | 188 | General |
| Three Years After The Cease Fire | Uyangoda | Polity | 2005 | 2 | 4 | 4 - 5 | General |
| Throne of the Kandyan Kings, The | Pearson | Journal of the D.B.U. | 1931 | XX | 3 | 147 - 148 | History |
| Throne of the Kings of Kandy, The | Pearson | Journal of the Royal Asiatic Society | 1929 | XXXI | 82 | 380 - 383 | History |
| Through the Looking Glass Darkly - Politics of Ethniciy | Coomaraswamy | Sri Lanka - The Ethnic Conflict | 1984 | N/A | N/A | 174 - 196 | General |
| Thunmulla - A Landscape in Sepia | De Costa | Loris | 1972 | XII | 6 | 294 - 298 | General |
| Thuparama Thupa | Devendra | Journal of the Royal Asiatic Society | 1966 | X New Series | N/A | 89 - 97 | Religion |
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