| Wedding Gifts & Other Presents | Asitha | Ameresekere | 2008 | Literature |
| Wedding Night Stories | Carl | Muller | 2007 | Literature |
| Wedding Season, The | Su | Dharmapala | 2012 | Literature |
| Wednesday's Children - Sexually Exploited Children | Maureen | Seneviratne | N/A | General |
| Welcome To Galle | Norah | Roberts | N/A | General |
| Welfare and Growth in Sri Lanka | Marga Institute | N/A | 1974 | General |
| Welfare As Politics in Sri Lanka | W.A. | Wiswa Warnapala | 1987 | General |
| Welfarism & Politics in Sri Lanka | Laksiri, Prof | Jayasuriya | 2000 | Politics |
| Well, Mudaliyar & Other Plays | H.C.N. | de Lanerolle | 1954 | General |
| Wesak Blossoms | Charita | Ranasinha | 1949 | Literature |
| Wesak Mal | Sujatha | Hettiarachchi | 1964 | Literature |
| Wesley College, Colombo, 125 Years - Commemorative Souvenir, 1874 - 1999 | Shelton | Peiris | 1999 | General |
| Wesley College, Colombo, Centenary Souvenir, 1874 - 1974 | Shelton | Peiris | 1974 | General |
| Wesley College, Colombo, Diamond Jubilee Number, 1874 - 1949 | Archibald | Singham | 1949 | General |
| West Indies Cricket Tour of Sri Lanka 1975 - Souvenir | Board of Control For Cricket in Sri Lanka | N/A | 1975 | General |
| West Reappraised, The | A.M.A. | Azeez | 1964 | General |
| Wetland Conservation in Sri Lanka - National Symposium Proceedings - IUCN | N/A | N/A | 2003 | General |
| Wetland Site Report - Bellanwilla-Atidiya Marsh | Central Environment Authority | N/A | 1993 | General |
| Wetland Site Report - Walauwawatta Waturana Swamp Forest | Central Environment Authority | N/A | 1994 | General |
| Whales & Dolphins, Sri Lanka | Anouk | Ilangakoon | 2002 | General |
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