| La Bussière | Christian Vesvre et Serge Desaunay | | | 5:28 | instrument |
| La douleur d'aimer | Gilles Servat | | | 4:30 | instrument |
| La golondrina | The Chieftains with Los Folkloristas | | | 3:10 | instrument |
| La iguana | The Chieftains with Lila Downs | | | 3:35 | instrument |
| La Vie en Vert | Celtic Legends | | | 8:58 | instrument |
| Lacey's Jig: Lacey's Jig / Michael O'Dwyer's | Michael McGoldrick & John McSherry | | | 3:47 | instrument |
| Ladies Pantalettes / Belles of Blackville / First House in Connaught | The Chieftains feat. Béla Fleck | | | 4:15 | instrument |
| Ladies, Step Up to Tea | Daniel Hope, Lúnasa | | | 4:21 | instrument |
| Lady Dillon | Liam O’Flynn | | | 4:13 | instrument |
| Lady Lane: Lady Lane / Farewell to Whalley Range / Michael Russell's | Michael McGoldrick & John McSherry | | | 3:27 | instrument |
| Lafferty’s / Crock of Gold / Lady Birr / Abbey Reel | Lúnasa | | | 4:54 | instrument (as “pipes”), instrument (as “2nd pipes”) |
| Lagavulin Bay | Harmonious Wail | | | 3:00 | instrument |
| Lament for Spilled Porter | Martin Denning, Paul Leech, Stephen Leech | | | 5:55 | instrument |
| Langues Minoriatires (Yezboù biban; Dé ptit parlement) | Gilles Servat | | | 4:08 | instrument |
| Lansdowne Blues | Davy Spillane | | 3 | 5:46 | instrument |
| Lark in the Morning / Pipe in the Hob (jigs) | Davy Spillane & Kevin Glackin | | | 3:19 | instrument |
| Lass of Aughrim | More Maids | | | 2:20 | instrument |
| Lass of Loch Royal | Maddy Prior & June Tabor | | | 4:07 | instrument |
| Last Night's Joy / The Lady's Cup of Tea (reels) | Peter Carberry & Pádraig McGovern | | | 2:58 | instrument (as “uilleann pipes in B pitch by Andreas Rogge”) |
| Last of the Wilds | Nightwish | | | 6:41 | instrument |
| Last of the Wilds | Nightwish | | | 6:54 | instrument |
| Last of the Wilds | Nightwish | | 4 | 5:41 | instrument |
| Last of the Wilds | Nightwish | | 3 | 6:32 | instrument |
| Last of the Wilds | Nightwish | | | 5:41 | instrument |
| Last Ride of the Day | Nightwish | | | 4:58 | instrument |
| Last Ride of the Day | Nightwish w/ Tony Kakko | | | 4:50 | instrument |
| Last Ride of the Day | Nightwish | | | 4:58 | instrument |
| Last Ride of the Day | Nightwish | | 3 | 4:34 | instrument |
| Last Ride of the Day | Nightwish | | 2 | 4:50 | instrument |
| Last Ride of the Day | Nightwish | | | 4:49 | instrument |
| Last Ride of the Day | Nightwish | | | 5:09 | instrument |
| Laz | Liz Knowles | | | 3:38 | instrument |
| Le Moulin de Guérande | Gilles Servat | | | 6:02 | instrument |
| Leaving of Liverpool | The Sandsacks | | | 3:23 | instrument |
| Lebensweg | Saltatio Mortis | | | 4:34 | instrument |
| Leef met volle teugen | Kinga Bán | | | 4:32 | instrument |
| Leer mij, o Heer, uw lijden recht betrachten | Sela | | | 3:45 | instrument |
| Let All Things Now Living | Michael Card | | | 3:11 | instrument (as “Ulliean pipes”) |
| Liberté couleur des feuilles | Gilles Servat | | | 2:18 | instrument |
| Lie Back and Think of England | The Tangent | | | 28:16 | instrument |
| Light of the World | LEAH | | | 4:20 | instrument |
| Light of the World (instrumental) | LEAH | | | 4:23 | instrument |
| Like a Mountain | Leaves’ Eyes | | 3 | 4:45 | instrument |
| Like a Mountain (instrumental) | Leaves’ Eyes | | | 4:45 | instrument |
| Like a Rose on the Grave of Love | Xandria | | 4.5 | 4:28 | instrument |
| Lila | Milladoiro | | | 4:12 | instrument |
| Lilah | Don Henley | | 1 | 4:08 | instrument |
| Lilly Bolero / The White Cockade | The Chieftains | | | 3:12 | instrument |
| Lily Love | The Chieftains w/ The Civil Wars | | | 3:01 | instrument |
| Little Love Affairs | The Chieftains & Nanci Griffith | | | 2:59 | instrument |
| Little Wing | The Corrs | | 3.5 | 5:08 | instrument |
| Live From Germany | Shannon | | | 5:54 | instrument |
| Loch Lomond | The Sandsacks | | | 2:53 | instrument |
| Logo (alternate extended version) | James Horner | | | 2:10 | instrument |
| Logo / Main Title | James Horner | | | 2:26 | instrument |
| Loin | Nolwenn Leroy | | | 3:50 | instrument |
| London Girl | The Pogues | | | 3:03 | instrument |
| Lord Franklin | Connie Dover | | | 5:11 | instrument |
| Lord of the Dance: Cry of the Celts | Erich Kunzel and the Cincinnati Pops Orchestra | | | 3:45 | instrument |
| Lord Reign in Me | Vineyard UK feat. Brenton Brown | | | 3:57 | instrument (as “ullian pipes”) |
| Lord Ronald | The Hoodie Crows | | | 5:01 | instrument (as “pipes”) |
| Lost | Kompendium | | | 6:05 | instrument |
| Lost Message | Ambeon feat. Astrid van der Veen | | 3 | 4:33 | instrument |
| Lots of Drops of Brandy | The Chieftains | | | 3:43 | instrument |
| Love and Guilt | Mark Knopfler | | | 3:10 | instrument |
| Love in the Shadows | Mary Coughlan | | | 3:39 | instrument |
| Love Is Teasin’ | The Chieftains feat. Marianne Faithfull | | | 4:36 | instrument |
| Lovejoy Chases Jack and Rose | James Horner | | | 2:24 | instrument |
| Lovers of Light | Afro Celt Sound System | | | 3:58 | instrument |
| Lucy Campbell / Trim the Velvet / Jenny's Wedding (reels) | Davy Spillane & Kevin Glackin | | | 4:29 | instrument |
| Lucy Campbell's: John Nee's Reel / Lucy Campbell's | Michael McGoldrick & John McSherry | | | 3:28 | instrument |
| Lugdūnon | Eluveitie | | 3.65 | 4:01 | instrument |
| Lullaby for the Dead | The Chieftains with Moya Brennan | | | 4:38 | instrument |
| Lunasa Jigs: Kerfuntan Jig / Eddie Kelly’s / Give Us a Drink of Water | Lúnasa | | | 4:09 | instrument |
| Lúnasa Klesmir: Frailoch | Lúnasa | | | 4:40 | instrument |
| Lunasa Single Jigs: Hog Ties / Promenade / Gan Anim | Lúnasa | | | 3:58 | instrument |
| Lundu | The Chieftains w/ Carlos Núñez | | | 3:09 | instrument |
| Luxtos | Eluveitie | | 3.5 | 3:55 | instrument |
| Luxtos | Eluveitie | | | 4:13 | instrument |
| Lvgvs | Eluveitie | | 4 | 4:16 | instrument |
| Lvgvs (instrumental) | Eluveitie | | | 4:25 | instrument |
| Maarein | Máire Breatnach | | | 3:06 | instrument |
| MacDougall's Men | Rebecca Pidgeon | | | 2:41 | instrument |
| Machtig wonder | Sela | | | 3:25 | instrument |
| Mad World | Cellar Darling | | | 3:23 | instrument |
| Magic Sword | 中村巴奈重 | | | 3:20 | instrument |
| Magnetism | Ayreon | | 4 | 3:55 | instrument |
| Maid in her Father's Garden | More Maids | | | 3:24 | instrument |
| Main Title From Braveheart | Boston Pops Orchestra; Jerry O'Sullivan | | | 4:50 | instrument |
| Malfunction Junction | Niall and Cillian Vallely | | | 4:29 | instrument |
| Mally Leigh | Connie Dover | | | 4:17 | instrument |
| Man van smarten | Sela | | | 4:02 | instrument |
| March to Battle (Across the Rio Grande) | The Chieftains with Banda de Gaita del Batallón de San Patricio, Liam Neeson, Los Cenzontles and L.A. Juvenil | | | 4:12 | instrument |
| María Soliña | Carlos Núñez | | | 3:48 | instrument |
| Marta’s Dance / The Russian Dervish | Bill Whelan | | | 6:03 | instrument |
| Martin Wynne's | Celtic Legends | | | 3:52 | instrument |
| Mary Rogers (Mary Mhaggie) / Siún Ní Dhuibhir | Mozaik | | | 4:53 | instrument |
| Maschere | Temperance | | | 3:25 | instrument |
| Mason's Apron | The Sandsacks | | | 2:47 | instrument |
| Mayo Breton Set: Lord Mayo / Gan Anim | Lúnasa | | | 3:43 | instrument |
