| Legal Heritage of Sri Lanka, The | A.R.B. | Amerasinghe | 1999 | General |
| Legal Needs of The Rural Poor in Sri Lanka, The | Law & Society Trust | N/A | 1981 | General |
| Legal Status of the Female in the Sri Lanka Law on Family Relations | Savitri | Goonesekere | 1980 | General |
| Legends All, \'Firsts\' in Sport in Sri Lanka | Asoka | Goonetilleke | 2016 | General |
| Legends of People Myths of State - Violence, Intolerance & Political Culture in Sri Lanka & Australia | Bruce | Kapferer | 1988 | General |
| Legends of People Myths of State - Violence, Intolerance & Political Culture in Sri Lanka & Australia | Bruce | Kapferrer | 1988 | General |
| Legislative Enactments - Appeals (Privy Council) Ordinance, 1956 revision | N/A | N/A | 1960 | Politics |
| Legislatures of Ceylon, The - 1928-1948 | S. | Namasivayam | 1950 | Politics |
| Lemongrass | Clodagh | Nethsingha | 1976 | General |
| Leonard Woolf (1908-1911): A British Civil Servant s a Judge | Prabhath | de Silva | 1996 | General |
| Leonard Woolf, A Life | Victoria | Glendinning | 2006 | History |
| Leonard Woolf, A Political Biography | Duncan | Wilson | 1978 | History |
| Leopard Observations, Yala National Park, Sri Lanka | Nanda | Senanayake | 2015 | General |
| Leopards & other Wildlife of Yala | Gehan | de Silva Wijeyaratne | 2004 | General |
| Lester by Lester | Kumar | de Silva | 2007 | General |
| Lester James Peries Collected Works | Piyasena | Wickramage | 2000 | General |
| Lester James Peries, Life & Work LJP | A. J. | Gunawardene | 2005 | General |
| Let My People Go | S.J. | Emmanuel | 1997 | General |
| Let Us Speak Sinhala | Shirley | Perera | 2007 | General |
| Let Us Tread The Path of Non-Violence - Speech by President Jayewardene | Ministry of State | N/A | 1983 | General |
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