L
- Lake Trout (band)
- Leaf Hound
- Leftover Salmon
- Legion of Mary (band)
- Les Claypool
- Les Claypool's Frog Brigade
- Lettuce (band)
- Little Barrie
- Little Feat
- Little Mountain Band
- Liquid Soul
- Lotus
- Long Beach Dub Allstars
- Lucid
Read more about this topic: List Of Jam Bands