| Rebellion of 1848, The - Letters on Ceylon 1846-50 | K.M. | de Silva | 1965 | History |
| Rebirth | Egerton | Baptist | 1981 | Religion |
| Rebirth As Doctrine and Experience | Francis | Story | 1975 | Religion |
| Recent Trends in the Commonwealth Law of Evidence | G. L. | Peiris | 1989 | General |
| Recipes from the Cookery Book of the last Kandyan Dynasty | Ananda S. | Pilimatalavuva | 2010 | General |
| Recipes My Mother Gave Me | Loukie | Werle | 1993 | General |
| Recollections | Gerard, Sir | Wijeyekoon | N/A | General |
| Recollections - A Collection of Short Stories | Parvathi | Solomons Arasanayagam | 2004 | Literature |
| Recollections of Ceylon | James, Rev | Selkirk | 1844 | General |
| Recommendations on Economic Planning in Ceylon | Ministry of Planning & Economic Affairs | N/A | 1966 | General |
| Reconstructing Culture & Place: The Sri Lankan Society & Space in Melbourne | Ranjith | Dayaratne, Dr | 2005 | General |
| Record of the Buddhist Countries, A | Fa-hsien | N/A | 1957 | Religion |
| Records of the Mineralogy Department, Ceylon - Professional Papers | Dept of Mineralogy, Ceylon | N/A | 1944 | General |
| Records of Traditional Watercraft from South & West Sri Lanka | Gerhard | Kapitan | 2009 | General |
| Reddened Water Flows Clear | Jean | Arasanayagam | 1991 | Literature |
| Reef | Romesh | Gunesekera | 1994 | Literature |
| Referendum '82 - Eclipse of Parliamentary Democarcy in Sri Lanka - Logos, Vol 22, No 1, 1983 | Centre For Society & Religion | N/A | 1983 | Politics |
| Reflections & Ruminations, Reminiscences & Reveries | Derrick | Mendis, S.J. | 2001 | Literature |
| Reflections - Ceylonese Welfare Organisation Inc, Foundation & Journey, 1973-2012 | Ruth | Van Gramberg | 2012 | General |
| Reflections iof the Raj, an Early Memoir | Romany | Wright Mulvaney | 2006 | General |
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