| Koji Kondo | SoundtrackPopElectronic musicInstrumental music | 14 |
| Kenneth Ascher | Soundtrack | 1 |
| Katharine McPhee | Pop | 1 |
| Alison Krauss | Country musicPop | 3 |
| K.Flay | Alternative rockRockHard rockSoundtrack | 2 |
| Nat King Cole | JazzPopPop genreSoul | 5 |
| K-Ci & JoJo | R'n'B | 2 |
| Kezah | Rap | 1 |
| Georgia Ku | Dance music | 1 |
| Michael Kiwanuka | PopSoul | 4 |
| Katrina & The Waves | Pop | 1 |
| Tom Kenny | Soundtrack | 1 |
