- The Lawrence County Brass -- The Lazy Eyes
- The Lazy Jumpers -- The League of International Super Best Friends
- The League of Proper Musicians -- The Lee Brothers
- The Lee-Danger Duo -- The Left Outsides
- The Left Rights -- The Legendary Clampetts
- The Legendary Crooners -- The Legion
- The Legion -- The Lemon Trees
- The Lemonbabies -- The Leonard Lothen Band
- The Leonard Washingtons -- The Lesser Scene
- The Lester Young - Teddy Wilson Quartet -- The Levert Kids
- The Levins -- The Liabilities
- The Liam Ivory Celli Band -- The Library Trust
- The Libs -- The Lids