| 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 |
| Twelve Centuries of Sinhala Poetry A Sri Lankan Anthology | Lakshmi | de Silva | 2004 | Literature |
| Twelve Parliaments of Sri Lanka, The - A Handy Guide | D.C. | Ranatunga | 2002 | Politics |
| Twentieth Century Impressions of Ceylon | Arnold | Wright | 1907 | General |
| Twentieth Century Tea Research in Sri Lanka | Westor W. D, Dr | Modder | 2003 | General |
| Twentieth Century, Vol 169, No 1007, 1961 | N/A | N/A | 1961 | Literature |
| Twenty Fifth Anniversary of the Accession of H.M. King George V | Govt of Ceylon | N/A | 1936 | General |
| Twenty Five Years After Maname | Douglas | Amarasekera | 1982 | General |
| Twenty Five Years of Life in the Jungle | Ven. Thambugala | Anandasiri Thero | 2004 | General |
| Twilight of the Tigers, Peace Efforts & Pwer Struggles in Sri Lanka | G. H. | Peiris | 2010 | General |
| Twin Happiness - Scientific Study of Twins | Edith M. G. | Fernando | 2001 | General |
| Twins of Ceylon, The | Harry | Williams | 1957 | General |
| Two Buddhist Books in Mahayana, The | Upasika | Chihmann | 1996 | Religion |
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