| Jungle Fowls of the World with Notes on the Ceylon Jungle Fowl | Dhanapala | Loris | 1969 | XI | 5 | 301 - 302 | General |
| Jungle Holiday, A | Wynell-Mayow | Loris | 1984 | XVI | 6 | 284 - 286 | General |
| Jungle Pool | Spittel | Times of Ceylon Annual | 1957 | N/A | N/A | N/A | General |
| Jungle Stories | Deraniyagala | Loris | 1984 | XVI | 5 | 229 - 232 | General |
| Jurassic Plants from the Tabbowa Series in Ceylon | Sitholey | Spolia Zeylanica | 1944 | 24 | 1 | 3 - 17 | General |
| Just War Tradition and Buddhism | | International Studies | 2009 | 46 | 4 | 423 - 438 | Religion |
| JVP Splits | Uyangoda | Polity | July - August 2008 | 4 | 5 | 5 - 7 | Politics |
| Kabaragoya & His Dinner, A | Peris | Loris | 1967 | XI | 2 | 104 - 105 | General |
| Kadadora Grant (An Ola Leaf Manuscript from the Kadadora Vihara in the Central Province) | Godakumbura | Journal of the Royal Asiatic Society | 1952 | II New Series | 2 | 141 - 158 | General |
| Kahapana of the Vinaya Parajika Pali, The | Codrington | Journal of the Royal Asiatic Society | 1923 | XXIX | 76 | 215 - 220 | Religion |
| Kalametiya Bird Sanctuary | Soysa | Loris | 1990 | XIX | 2 | 64 - 66 | General |
| Kali Villu, At | Jayasekere | Loris | 1969 | XI | 5 | 317 - 318 | General |
| Kalinga Dynasty of Ceylon & the Theory of its South-East Asian Origin, The | Sirisena | Ceylon Journal of Historical & Social Studies, The | 1971 | 1 (New Series) | 1 | 11 - 47 | History |
| Kalpentyn | Trimmer | Times of Ceylon Annual | 1970 | N/A | N/A | N/A | General |
| Kalpitiya and Beyond | Loos | Loris | 1949 | V | 2 | 60 - 63 | General |
| Kalu Ganga Multi-Purpose Project: Eological & Environmental Concerns | Jansen | Loris | 1991 | XIX | 4 | 127 - 131 | General |
| Kalutara Basket Society, The | De Fonseka | Festival of Arts Souvenir | 1949 | N/A | N/A | 36 - 37 | General |
| Kalutara Snail, The | Somanader | Loris | 1951 | V | 6 | 264 - 267 | General |
| Kalvettu of the Seerpadam of the Eastern Province, A | Raghavan | Spolia Zeylanica | 1953 | 27 | 2 | 187 - 193 | General |
| Kamma Doctrine of the Buddha, The | Peiris | Ceylon Today | 1960 | 9 | 1 | 5 - 7 | Religion |
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