- Lady in Gil series
 - Land Between the Rivers
 - A Land Fit for Heroes
 - Land of Ten Thousand Willows
 - Lan-Kern Trilogy
 - Last Clansman
 - Last Herald-Mage
 - Last of the Renshai
 - Last Rune
 - Last Viking
 - Laws of the Blood
 - Lay Lines Trilogy
 - Legacy of the Drow
 - Legends of Camber of Culdi

 - Legends of the Five Rings
 - Legend of the Land
 - Legends of Lone Wolf
 - Legends of the Raven
 - Legends of the Riftwar
 - Legends of the Wolves
 - Leitus novels
 - Lens of the World Trilogy
 - Liavek
 - Lightbringer Trilogy
 - Liveship Traders
 - Living Towers Trilogy
 - Llarn sequence
 - Logical Magician

 - LonTobyn Chronicle
 - Lord Darcy Series
 - Lord of the Isles
 - Lord of the Rings
 - Lords of Dus
 - Loregiver series
 - Loremasters of Elundium
 - Lost Empires
 - The Lost Gods
 - The Lost Histories
 - Lost Legends
 - Lost Years of Merlin
 - Lyonesse Trilogy
 - Lyra series