| Tropical Beach Handbook | Nick | Hanna | 1989 | General |
| Tropical Blossoms Of The Pacific | Dorothy | Hargreaves | 1970 | General |
| Tropical Development 1880-1913 - Studies in Economic Progress | W. Arthur | Lewis | 1970 | General |
| Tropical Marine Aquaria | Graham F. | Cox | 1977 | General |
| Tropical Nutrition and Dietetics | Lucius | Nicholls | 1945 | General |
| Tropical Planting & Gardening with Special Reference to Ceylon | H.F. | Macmillan | 1962 | General |
| Tropical Rainforests - A Resource Book for Secondary School Teachers - IUCN | Charmalee D. | Jayasinghe | 2005 | General |
| Tropical Soil Science, Elements of | T. | Eden | 1956 | General |
| Tropical Treasury, A (A Souvenir of the East) | Peter | Gillespie | 1946 | Literature |
| Tropical Trees Of The Pacific | Dorothy | Hargreaves | 1970 | General |
| Trousered Harijan, The | Hubert E | Weerasooriya | 1946 | Literature |
| Truculenter, The, Odyssey of the Glamorous Sri Lankan Wildlife | Asela | Karunaratne | 2020 | General |
| True & Exact Descrption of the Great Island of Ceylon | Phillipus | Baldaeus | 1960 | History |
| Truth About Sri Lanka's Ethnic Conflict, The | QASLU | Veritas | 1987 | General |
| Truth About The Mahaweli, The | Gamini | Iriyagolle | 1978 | General |
| Truth About The Strikes, The | Christian Workers Fellowship | N/A | 1980 | General |
| Tudugala Family, The | J.H.O. | Paulusz | 1970 | History |
| Tulip in Lotus Land, A - the Rise & Decline of Dutch Burgher Ethnicity in Ceylon 1638 - 1948 | Rosita Joan | Henry | 1986 | General |
| Turmeric | Clodagh | Nethsingha | 1976 | General |
| Tusk, A Novel | Bill | Reed | 1996 | Literature |
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