- Ka Baird
- Kaare Norge
- Kah Kit Yoong
- Kai
- KAi
- Kai
- Kai Jürgen Hartwig
- Kai Schumacher
- Kaiser Klassix
- Kaitlyn Raitz
- Kaki King
- Kalamazoo Symphony Orchestra
- Kaleidoscope of Colours
- Kaleidoscope Orchestra
- Kalin Ivan
- Kammerorchester Conrad von der Goltz
- Kanakesh Rathod
- Kanazu Tomoyuki
- Kang Dong Hoon
- Kang Myung Bo
- Kaori Muraji
- Karel Havlíček
- Karen Asatrian
- Karen Biehl
- Karen Holvik
- Karen Vourc'h
- Kari Kriikku
- Karima Matser
- Karita Mattila
- Karl Berger
- Karl Eliasberg
- Karl Friedrich Gerber
- Karl Jenkins
- Karl Krueger
- Karl Pituch
- Karl Richter
- Karl Ridderbusch
- Karl Thesing
- Karl-Heinz Loges
- Karl-Heinz Steffens
- Karolína Berková
- KASHA
- Kasia Moś
- Katarina Henryson
- Katarzyna Borek
- Kate Lindsey
- Katharina
- Katherine Jenkins
- Kathryn Stott
- Katia & Marielle Labèque
- Katia Labèque
- Katia Ricciarelli
- Katica Illényi
- Katona Twins
- Katrin Wettin
- Katsuhisa Hattori
- Katy Klever
- Kazufumi Yamashita
- Ke Lin
- Keaton Henson
- Kebu
- Keedie
- Keep Everything In The Heart
- Keiichi Okabe
- Keinji Kondo
- Keith Clark
- Keith Emerson
- Keith Emerson Band
- Keith Jarrett
- Keith Lockhart
- Keith Lockhart and The Boston Pops Orchestra
- Keito & Vasko "Viano"
- Keito Saito
- KeKo
- Ken Thorne
- Kenan Fejzic Cina
- KENBANDANSHI
- Kennedy
- Kennet Roy
- Kenneth Cooper
- Kenneth Dennison
- Kenneth Jean
- Kenny Coleman
- Kenny Colman
- Kent Nagano
- Kentucky Harmony
- Kepa Lehtinen
- Kerim König
- Kerry Barnes
- Kerry Livgren
- Kerstin Georgi
- Ketil Bjørnstad
- Kevin Baca
- Kevin Bowyer
- Kevin M. Thomas
- Kevin MacLeod
- Kevin Maynor
- Kevin Olusola
- KEYNVOR
- Keyvan Chemirani
- Keyvan Hardani
- Keyvin Ce
- Khlo
- Khris N Rocks
- Kim André Arnesen
- KIM DO HOON
- Kim Dokyung
- Kim Dong Kyu
- Kim Hojoong
- Kim Hwa Yong
- Kim Jae duk
- Kim Kyungmin
- Kim Ozawa
- Kim Planert
- Kim Soo-Young
- Kimberly Coats
- Kin-ichi Nakamura
- King Jamsheed
- King's Chamber Orchestra
- Kirashy
- Kirill Gerstein
- Kirill Kondrashin
- Kirill Richter
- Kirin Uchida
- Kirsten Flagstad
- KITARO
- Kiwivagui
- Kiyoshi Kobayashi
- Klassik Radio Pops Orchestra
- Klaudia
- Klaus Florian Vogt
- Klaus Schønning
- Klaus Tennstedt
- Klazz Brothers
- Klazz Brothers & Cuba Percussion
- Kliment Rahul
- Knabenchor Hannover
- KO BUMJUN
- Ko Hoon Jeong
- Koel Wilder
- Koho Uno
- Koki Nakano
- Kolacny Brothers
- KoN
- Konkylie
- Konstantin Kokourov
- Konstantin Wecker
- Korean Symphony Orchestra
- Koroiev
- Koto Trio Hibiki
- Kováts Kriszta
- Kreisorchester Lichtenfels
- Kriemhild Jahn
- Kris Di Natale
- Krishna Levy
- KrisKros
- Kristen Xae
- Kristina & Laura
- Kristina Reiko Cooper
- Kristina Šop
- Kristjan Järvi
- Kristoffer Wallin
- Kronos Quartet
- Kronthaler
- KrysX
- Kseniia Alien
- Ksenija Sidorova
- Kseniya Korchevaya
- Kurt Masur
- Kurt Sanderling
- Kurtis Maier
- Kurtis Parks
- Kwak Woongshik
- Kwangchul Youn
- Kyle Booth
- Kyle Landry
- Kyle McEvoy
- Kyle Preston
- Kyung Min Lee
- Kyung Wha Chung