| Provisional Inventory of Wetlands in Sri Lanka | Hoffmann | Loris | 1982 | XVI | 2 | 94 - 96 | General |
| Pseudo-Combat of the Adult Ceylon Elephant | Deraniyagala | Spolia Zeylanica | 1958 | 28 | 2 | 193 - 194 | General |
| Pseudo-Combat of the Monitor Lizard Varanus Bengalensis | Deraniyagala | Spolia Zeylanica | 1958 | 28 | 2 | 159 | General |
| Public Corporations in Ceylon, Their Constitution, Powers & Legal Position | Weerasooria | Ceylon Historical Journal, The | 1969 - 1970 | 19 | 1, 2, 3 & 4 | 50 - 61 | General |
| Public Relations & the Public Service | De Alwis | Ceylon Today | 1966 | 15 | 10 | 5 - 8 | General |
| Public Service & the New Constitution, The | Wiswa-Warnapala | Ceylon Journal of Historical & Social Studies, The | 1977 | 7(New Series) | 2 | 36 - 50 | Politics |
| Public Works Department, The | De Kretser | Journal of the D.B.U. | 1942 | XXXI | 3 | 113 - 123 | General |
| Punkuduitvu (or Middleburg) | Toussaint | Journal of the D.B.U. | 1944 | XXXIV | 1 | 21 -- 22 | General |
| Puntius Bandula - Bandula Barb | Gunawardene | Loris | 1998 | XXI | | 191 - 194 | General |
| Pybus | N/A | Journal of the D.B.U. | 1963 | LIII | 3 & 4 | 47 | History |
| Queen's House | N/A | Journal of the D.B.U. | 1959 | XLIX | 3 & 4 | 97 | History |
| Queen's House, Colombo | Somanader | Ceylon Today | 1954 | 3 | 5 & 6 | 12 - 14 | General |
| Quest For Cousins, A | Ludovici | Journal of the D.B.U. | 1991 | LXV | 1 - 4 | 2 - 6 | General |
| Quietly Flows the Mahaweli - From Hatton Plains to Koddiyar Bay | Schokman | Times of Ceylon Annual | 1970 | N/A | N/A | N/A | General |
| Raban Sellama and its Music | Kulatillake | Journal of the Royal Asiatic Society | 1984/85 | XXIX New Series | N/A | 19 - 32 | General |
| Rabaulichthys stigmaticus: First Record from Sri Lanka | Pethiyagoda | Journal of South Asian Natural History | 1994 | 1 | 1 | 15 - 16 | General |
| Races of the Stone Age & of the Ferrolothic of Ceylon, The | Deraniyagala | Journal of the Royal Asiatic Society | 1957 | V New Series | 1 | 1 - 24 | General |
| Racial Nomenclature | N/A | Journal of the D.B.U. | 1934 | XXIV | 1 | 37 | General |
| Radioisotopes in a Developing Country | Dissanaike | Ceylon Today | 1965 | 14 | 12 | 12 - 15 | General |
| Raid at Sinharaja, A - My Experiences & Conflicting Thoughts | Gunatilleke | Loris | 1986 | XVII | 4 | 166 - 170 | General |
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