| Some Reflections on National Education | L. X. F. | N/A | N/A | General |
| Some Salient Characteristics of Buddhism | Narada | Thera | 1952 | Religion |
| Some Side Lights on the Sinhala Monastery-Fortress of Sihagiri | P.E.P. | Deraniyagala | 1973 | History |
| Some Sinhala Combative Field & Aquatic Sports and Games | P.E.P. | Deraniyagala | 1959 | General |
| Some Skeletal Remains, Implements & Food of Balangoda Man | P.E.P. | Deraniyagala | 1955 | General |
| Some Vertebrate Animals of Ceylon - Vol 1 | P.E.P. | Deraniyagala | 1949 | General |
| Some Women of the Mahavamsa | Maureen | Seneviratne | 1969 | Religion |
| Some Women of the Mahawamsa & Chulawamsa | Maureen | Seneviratne | 2007 | History |
| Someone Else's War | UTHR | N/A | 1994 | General |
| Something Personal & O Little Town - Two Nativity Plays | E.C.T. | Candappa | 1971 | Religion |
| Somewhere A Child Is Crying | Donovan | Moldrich | 1986 | General |
| Son of the Lion | W.T. | Keble | 1968 | Literature |
| Song of the Sun God, A Novel | Shankari | Chandran | 2017 | Literature |
| Songs of Ceylon | Devar | Surya Sena | N/A | General |
| Songs of Lanka | Sujatha | Hettiarachchi | N/A | General |
| Sons of the Rebels | C. Gaston | Perera | 2005 | History |
| Sorcery, Premeditated Murder & the Canalization of Aggression in Sri Lanka | Gananath | Obeyesekere | 1993 | General |
| Sorcery, Premeditated Murder & the Canalization of Agression in Sri Lanka | Gananath | Obeyesekere | 1993 | Politics |
| Sound of Echoes, The | Maureen | Seneviratne | 1992 | Literature |
| South Asia | Angus | Maude | 1966 | General |
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