| Traffic Signs, Road Marking and Traffic Signals | T. | Perinpanayagam | 2012 | General |
| Tragedy of a Mystery, The | Rosalind | Mendia | 1986 | Literature |
| Tragedy of Errors, A - About Tigers, Talks, Ceasefires & The Proposed Constitution | S.L. | Gunasekera | N/A | General |
| Train Guide 1981 | Sri Lanka Railways | N/A | 1981 | General |
| Train No 50 - Tsunami Disaster | Pradeep | Gunawardana | 2006 | General |
| Tranquil Footsteps | Srilal | Miththapala | 2008 | General |
| Transactions For 1953 - Part 1, Engineering Association of Ceylon | Engineering Association of Ceylon | N/A | 1953 | General |
| Transformation of Vision Into Reality-Planning for Development (Awakening) | A.T. | Ariyaratne | 1990 | General |
| Transformed Port of Colombo, The | Douglas B. | Ranasinghe | 2006 | General |
| Transforming A 'White Australia' | Laksiri (Prof) | Jayasuriya | 2012 | General |
| Translation of Hansa-Sandesa (1-62) | J. | de Silva | 1926 | General |
| Transmigration and Metempsychosis | Chas | de Livera | N/A | Religion |
| Transnationalism & Sri Lanka's Migrant Housemads - The Kitchen Spoon's Handle | Michele Ruth | Gamburd | 2000 | General |
| Travails of Wanni, The | J.R. | Sinnatamby | 1978 | General |
| Travel Diary of Isaac Augustin Rumpf ,The Dutch Governor of Ceylon, 1716-1723 | K. D. | Paranavitana | 2015 | History |
| Travel Guide - Sri Lanka & The Maldives | Berlitz | N/A | 1981 | General |
| Travelling & Unearthings | Gamini | Pieris-Seneviratne | 1996 | Literature |
| Travels in Ceylon & Continental India | W., Dr | Hoffmeister | 1848 | General |
| Travels in Ceylon 1700-1800 | R. | Raven-Hart | 1963 | General |
| Travels of Fa-hsien (399-414AD), or Record of The Buddhist Kingdoms, The | H.A. | Giles | 1923 | History |
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