| Lanka's Yesteryears - Fact & Fiction | Alfred Gogerly | Moragoda | 2000 | Literature |
| Lanka, Their Lanka - Cameos of Ceylon through Other Eyes | H.A.I. | Goonetileke | 1984 | General |
| Lankalay & other Poems | D. J. B. | Jeganayagam | 1950 | Literature |
| Lankan Isle, Vol 2, No 2, April-June 2019 | Chandani | Kirinde | 2019 | General |
| Lankan Mosaic, A - Translations of Sinhala & Tamil Short Stories | Ashley | Halpe | 2002 | Literature |
| Last Colonial, The - Curious Adventures & Stories from a Vanishing World | Christopher | Ondaatje | 2011 | General |
| Last Days of King Sri Wickrema Rajasinha, The | J.R. | Jayewardene | 1992 | History |
| Last Exile of Sita, The | J.C. | Nesfield | N/A | General |
| Last Kingdom of Sinhalay, The | Elmo | Jayawardena | 2003 | Literature |
| Lasting Storm, A - Sri Lanka 1948-2001 | Maureen | Seneviratne | 2001 | General |
| Laudetur Franciscus, A Man for Others | Avishka Mario | Senewiratne | 2022 | General |
| Laugh Awhile - A Collection of Humorous Stories & Jokes | P. V. | Jayaratne | 1998 | General |
| Laughing Lanka - Poems To Make You Smile | Felix | Fernando | 1975 | Literature |
| Law & Social Change - A Study of Land Reform in Sri Lanka | Gunnar | Myrdal | 1977 | General |
| Law & the Constitution, The | W.Ivor | Jennings | 1945 | Politics |
| Law and the Mariage Relationship in Sri Lanka | Shirani | Ponnambalam | 1987 | General |
| Law Enforcement Agencies & Their Role in the Implementation of the International Bill of Human Rights | Sri Lanka Foundation | N/A | 1987 | General |
| Law In Crisis, The - Bridges of Understanding | C.G. | Weeramantry | 1975 | General |
| Law Journal, Bar Association of Sri Lanka, Vol 1, Part 1, May - June 1983 | W. P. | Gunatilake | 1983 | General |
| Law of Contracts, The - Vol 1 | C.G. | Weeramantry | 1967 | General |
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