| The Ladybug Transistor |
| The Lafaros |
| The Lafontaines |
| The Lake Poets |
| The Lambrettas |
| The Lancashire Hotpots |
| The Lancastrian Theatre Organ Trust |
| The Land Before Tim |
| The Landau Orchestra |
| The Langley Schools Music Project |
| The Larkins |
| The Larks |
| The Lashes |
| The Lassie Foundation |
| The Last Artful, Dodgr |
| The Last Bandoleros |
| The Last Dance |
| The Last Emperor |
| The Last Goodnight |
| The Last Hard Men |
| The Last Oblation |
| The Last Origin |
| The Last Poets |
| The Last Resort |
| The Last Shadow Puppets |
| The Last TeleBenders |
| The Last Titan |
| The Last Vegas |
| The Last Waltz Ensemble |
| The Last Wednesday |
| The Late Ones |
| The Latency |
| The Latin Association |
| The Latin Hooligans |
| The Latin Jazz Coalition |
| The Latin Jazz Quintet |
| The Latin Rhythm Connection |
| The Latin Sound of Guitars |
| The Latin Sounds Orchestra |
| The Latino Band |
| The Latino Rockabilly War |
| Thé Lau |
| The Laughing Men |
| The Laurie Berkner Band |
| The Lavender/Shell Duo |
| The Lavens |
| The Lavon Stevens Quartet |
| The Law |
| The Law North Of Crow Creek |
| The Lawmen |
| The Lawn |
| The Lawrence Arms |
| The Lawson-Haggart Jazz Band |
| The Lawyers |
| The lazy freeloaders |
| The Leader |
| The League of One |
| The Leake County Revelers |
| The Learning Station |
| The Leathercoated Minds |
| The Leaves |
| The Leaves of Grass |
| The Lebanese National Orchestra for Oriental Arabic Music |
| The Lebowski |
| The Lebrón Brothers |
| The Lectric Monks |
| The Lee Gordon Singers |
| The Lees |
| The Left Banke |
| The Left Lanes |
| The Leftovers |
| The Lefty Brothers |
| The Legacy |
| The Legacy Band |
| The Legend Adam Bomb |
| The Legendary Blues Band |
| The Legendary Masked Surfers |
| The Legendary Pink Dots |
| The Legendary Shack Shakers |
| The Legendary Tigerman |
| The Legends |
| The Legion |
| The legion of doom |
| The Leiber-Stoller Big Band |
| The Lemon Pipers |
| The Lemon Twigs |
| The Lemonheads |
| The Lemonheads |
| The Len Mercer Strings |
| The Len Price 3 |
| The Lengths |
| The Lennies |
| The Lennon Sisters |
| The Lenny D Show |
| The Lenny Mack Band |
| The Leon Young String Chorale |
| The Leonard Lothlen Project |
| The LeRoi Brothers |
| The Les Humphries Singers |
| The Leslie West Band |
