| LABARRE Didier | Percussion |
| LACIRIGNOLA Pietro | Alto/tenor sax |
| LAFONTAINE Pierre | Tenor sax |
| LALOY Philippe | Alto, sop sax - Flute |
| LAMAL Pieter | Piano |
| LAMY Greg | Guitar |
| LA ROCCA Salvatore | Acoustic bass |
| LASOEN Wim | Vibraphone |
| LATTUCA Gino | Trumpet/flugelhorn |
| LEBLANC Philippe | Alto sax - Clarinet |
| LECOURT Ronald | Vibraphone |
| LEEUWE Hendrik | Trumpet/flugelhorn |
| LEGNINI Eric | Piano - Composer |
| LELANGUE Marc | Guitar - Songwriter |
| LEROUX Frederik | Guitar |
| LEROY Christian | Piano - Composer |
| LENSSENS Maxime | Drums |
| LESIRE Alain | Piano |
| LETELLIER Constant | Alto sax - Clarinet |
| LETOR Hervé | Tenor & soprano saxophone, flute, percussion |
| L'HERBETTE Nicolas | Electric bass |
| LHOEST Léon | Piano - Keyboards |
| LIBERSKI Casimir | Piano |
| LIBOIS Philippe | Piano - Keyboards |
| LIECKENS Koen | Drums |
| LIEFSOENS Andres | Vibraphone |
| LIEGEOIS Quentin | Guitar |
| LIEGEOIS Tony | Drums |
| LIMBOURG Dieter | Tenor, alto sax - Clarinet |
| LINSMAN Jean | Trumpet/flugelhorn |
| LINX David | Vocals - Composer |
| LIPPENS Serge | flute, guitar, keyboards, piano, composer |
| LISEIN Gauthier | Percussion |
| LIST Garrett | Trombone - Composer/arranger - Vocals |
| LOCURCIO Marco | Guitar |
| LOGEN Régine | Vocals |
| LOGNAY Pierre | Guitar |
| LOOS Charles | Piano - Composer |
| LOOTENS Tars | Piano - Keyboards - Composer/arranger |
| LOOZEN Eddy | Piano |
| LORIERS Nathalie | Piano - Composer |
| LOSSIGNOL Jean-Paul | Trumpet/flugelhorn |
| LOUIS Benoît | Piano - Keyboards |
| LOVERI Paolo | Guitar |
| LUC Sylvain | Tenor/soprano sax |