| Swimming Against the Tide - An Autobiography of a Phoenix of Science | E.R. Prof | Jansz | 2012 | General |
| Sword & the Belt, The | Bertram | Serasinghe | 1984 | General |
| Sylvestro-Benedictine Monks in Sri Lanka 1845-1995 | Sylvestro Benedictines | N/A | 1995 | Religion |
| Symbols of Conflict | Cedric | Forster | 1989 | Literature |
| Systematic Nomenclature for the Birds of Sri Lanka, A | D.G.A. | Perera | 1983 | General |
| Systems Concept of Business Organization & Management Relationships, A | Y.L.R. | Jayaratne | 1995 | General |
| Tagus to Taprobane | Shihan | de Silva Jayasuriya | 2001 | History |
| Taking Social Development Seriously, The Experience of Sri Lanka | Laksiri, Prof | Jayasuriya | 2010 | General |
| Tale in Two Countries, A | Corinne | Koelmeyer | 2014 | History |
| Tale The Letter Tells | Ministry of State | N/A | N/A | General |
| Tales From Ceylon | G.F. | Plant | N/A | Literature |
| Tales From Some Eastern Jungles | K.W.S. | Mitchell | 1928 | General |
| Tales From The Provinces | Tissa | Devendra | 1998 | General |
| Tales of a Lifetime | Gerald | Cooray | 1999 | General |
| Tales of an Enchanted Boyhood, Alupola to Jaffna, 1940-1960 | Philip G., Dr | Veerasingam | 2020 | Literature |
| Tales of Courage & Chivalry Retold from The Mahavamsa & Chulavamsa | Maureen | Seneviratne | 1991 | History |
| Tales of Fish & People of the Ceylon Estuary | J.A.R. | Grenier | 1954 | General |
| Tales of Old Ceylon | N/A | Fijjik | 1963 | Literature |
| Tales of Sri Lanka re-told in Verse & Story | Deloraine | Brohier | 1978 | General |
| Tales of the Blue Elephant - Life & Times with the Ceylon Police | Douglas | Ranmuthugala | 2000 | General |
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