- LakeSide
- Lakeside Guitar Club
- Lana Korte
- Larry Cordle
- Larry Cordle & Lonesome Standard Time
- Larry Perkins
- Larry Perkins & Friends
- Larry Rice
- Larry Sparks
- Larry Stephenson
- Last Acre
- Last Fair Deal
- Last Road Bluegrass
- Laurel Canyon Ramblers
- Laurel Mountain Boys
- Laurie Lewis
- Laurie Lewis & Her Bluegrass Pals
- Laurie Lewis & The Right Hands
- Lawson & Williams
- Lee Allen
- Lee Moore
- Lee Street Lyrical
- Lee Thunders
- Lee Wolfe and the Blue Rangers
- LeeAndrew Bray
- Leftover Salmon
- Legion of Mary
- Leo Leonhardsen
- Leon Russell
- Leon Russell
- Leon Russell with The Newgrass Revival
- Leona
- Leroy Mack
- Leroy Troy
- Les Claypool's Duo De Twang
- Les swompards de l'est
- Lester Flatt
- Lester Flatt & Earl Scruggs
- Lester Thomas
- Levi Henriksen
- Lewis Family
- Lewis, Scruggs, & Long
- Liberata
- Like Father Like Son
- Lilly Brothers & Don Stover
- Linda Barker & Appalachian Trail
- Linda Blasnik
- Linda Hutchins
- Linda Lay
- Lindley Creek
- Liselotte Van Dooren
- Little Mo' Mccoury
- Little Roy Lewis
- Little Roy Wiggins
- LITTLEgiants
- Livewire
- Lluís Gómez
- Lo Zio Sam
- Loafer's Glory
- Locust Ridge
- LOL
- Lonesome River Band
- Lonesome Standard Time
- Long-View
- Longview
- Lonnie Robertson
- Lorraine Jordan
- Lorraine Jordan & Carolina Road
- Lorraine Jordan and Carolina Road
- Lost & Found
- Lou Reid
- Lou Reid & Carolina
- Lou Reid and Carolina
- Lou Simon
- Louisa Branscomb
- Love Canon
- Lucas Reis
- Lucky D
- LUCKY LIPS
- Luiz Rock
- Luke & Jenny Anne Bulla
- Luther Wright & The Wrongs
- Lyman Enloe
- Lynn Anderson
- Lynn Morris