All instruments A–Z
- Krakeb
- Krar
- Krekhts
- Krez
- Kse diev
- Kubing
- Kudüm
- Kuhlohorn
- Kuisi
- Kukkuma
- Kulibit
- Kulintang a kayo
- Kulintang a tiniok
- Kumuz
- Kundu
- Kuriding
- Kusle
- Kutiyapi
- Kuvytsi
- Kuzhal
- Kwitra
- Kyam
- Kèn
- Kèn bầu
- Kèn đám ma
- Kōauau
- Lace Sensor
- Lag-na
- Lagguti
- Lali
- Lambeg drum
- Lamellophone
- Langspil
- Laouto
- Lap steel guitar
- Larchemi
- Laruan
- Laser harp
- Lau♪
- Launeddas
- Lautenwerck
- Lavalier microphone
- Laúd
- Leadpipe
- Leona♪
- Lesiba
- Ligature
- Lijerica
- Limbe
- Ling
- Lingm
- Linn LM-1
- LinnDrum Midistudio
- Lion's roar
- Lip-ribbon microphone
- Lipstick pickup
- Lira
- Lira da braccio
- Lirone
- List of Chinese flutes♪
- List of Chinese musical instruments
- Lithophone
- Liuqin
- Liuto cantabile
- Livenka
- Livika
- Logan String Melody
- Lokole
- Loudspeaker
- Loudspeakers in mosques
- Low whistle♪
- Lowrey organ
- Lur
- Lusheng
- Lute
- Lute guitar
- Luthéal
- Lyra viol
- Lyre♪
- Lyre-guitar
- Lyres of Ur
- Lyricon
- Lytavry
- Låtfiol
- Madal
- Maddale
- Madhalam
- Maestro FZ-1 Fuzz-Tone
- Magadis
- Maghreb rebab
- Magnetic cartridge
- Mahuri♪
- Makuta
- Mallet percussion instrument
- Mandobass
- Mandocello
- Mandola
- Mandolin
- Mandolin-banjo
- Mandolone
- Mandolute
- Mandore
- Manjira
- Manjur
- Mantura
- Maraca
- Marching brass
- Marching instrument
- Marching percussion
- Marimba♪
- Mark tree
- Marovany
- Martinshorn
- Marxophone
- Marímbula
- Maschine
- Masenqo
- Mashak
- Mazanki
- Mazhar
- Mbira
- Mechanical organ
- Medieval lituus
- Megaphone
- Mejoranera
- Mellophone
- Mellotron
- Melodica♪
- Membranophone♪
- Memorymoog
- Metallophone♪
- Mexican twelve-string guitar
- Mezzo-soprano saxophone
- Mi gyaung
- Microphone♪
- Mid-range speaker
- MIDI controller
- Midwinter horn
- Mihbaj
- Mijwiz
- Milkymist SoC
- Mina♪
- Mini-humbucker
- Minimoog
- Minimoog Voyager
- Minipiano
- Mirwas
- Mixing console
- Mizhavu
- Mizmar