| Racing Calendar, The - 1st October 1927-30 September 1928 | Ceylon Turf Club. | N/A | 1927 | General |
| Racing Calendar, The - 1st October 1929-30 September 1930 | Ceylon Turf Club | N/A | 1929 | General |
| Racing Calendar, The - 1st October 1931-30th September 1932 | Ceylon Turf Club | N/A | 1931 | General |
| Radio Amateur, The - 50th Anniversary Issue, 1950 - 2000 | Radio Society of Sri Lanka | N/A | 2001 | General |
| Rail 2000 (1864-2000) | Priyal | de Silva | 2000 | General |
| Railway Employees (Locomotive Department) Commission | Govt of Ceylon | N/A | 1913 | General |
| Railway Extension Towards Uva - Correspondence re Haputale Section | Government of Ceylon | N/A | 1881 | General |
| Railway the British Built in Ceylon | Ranjith. L. | Dissanayake | 2014 | General |
| Railway Time Table 1966 | Ceylon Government Railway | N/A | 1966 | General |
| Railways of Sri Lanka | David | Hyatt | 2000 | General |
| Rain Forests & Cloud Forests | Joan E. | Fisher | 1979 | General |
| Rain Magic | Edith | Weereratne | 1997 | Literature |
| Rainbows in Braille - A Collecion of Short Stories | Elmo | Jayawardena | 2007 | Literature |
| Raj in Ancient Ceylon, The - 1936 - 1940 | Sharada | Nayak | 2015 | General |
| Raja Maha Viharas of Kandy | Lloyd | Weerekoon | 1990 | Religion |
| Raja Singha 2 and His Times | Donald | Obeyesekere | 1928 | History |
| Rajavaliya | A.V. | Suraweera | 2000 | History |
| Rajavaliya, The - A Historical Narrative of Sinhalese Kings | B. | Gunasekara | 1954 | History |
| Ramayana | C. | Rajagopalachari | 1962 | Religion |
| Ramayana, The | Elizabeth | Seeger | 1975 | General |
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