- Kaela KovalskiaCountry: IndonesiaActive since: 26 March 2022
- Kaleb JCountry: IndonesiaActive since: 2018
- Kamasean MatthewsCountry: IndonesiaActive since: 2012
- KamayaCountry: IndonesiaActive since: 2005
- Kandiya Rafa MauliditaCountry: IndonesiaGenre: pop music
- Karel SusanteoCountry: IndonesiaActive since: 2011
- Karim NunCountry: Indonesia
- Karis Alika IslamadinaCountry: IndonesiaGenre: popular music
- Karmila WarouwCountry: IndonesiaPlace of birth: Palu
- Kartika Yudia RamlanCountry: IndonesiaActive since: 2002
- Kathrina IreneCountry: IndonesiaActive since: 2019
- Katyana MawiraCountry: IndonesiaPlace of birth: Bogor
- KekalType: GroupActive since: August 1995
- Kelly PuspitoCountry: IndonesiaActive since: 1950
- Ken RangkutyCountry: GermanyActive since: 2004
- Kenny GabrielType: Solo artistActive since: 22 July 1995
- KenrizCountry: IndonesiaGenre: pop music
- Kery AstinaType: Solo artistActive since: 9 March 1995
- Kevin AprilioCountry: IndonesiaActive since: 2008
- Kezia Lizina AlexandraCountry: IndonesiaPlace of birth: Bandung
- Kezya Putri SetiawanCountry: IndonesiaPlace of birth: Jakarta
- Khrisna MuktiCountry: IndonesiaActive since: 1995
- Kiboud MaulanaCountry: IndonesiaActive since: 1967
- KimCountry: IndonesiaGenre: dance-pop
- Kimmi ChanCountry: IndonesiaActive since: 2012
- King of BandType: GroupActive since: 21 May 2021
- KireyCountry: IndonesiaActive since: 1996
- KoesbiniCountry: IndonesiaActive since: 1935
- KojekCountry: IndonesiaActive since: 2007
- KrisdayantiType: Solo artistActive since: 24 March 1975
- Krishna BalagitaType: Solo artistActive since: 26 March 1967
- Krishna BalagitaCountry: IndonesiaActive since: 1996
- KrisyantoCountry: IndonesiaActive since: 1995
- KSP BandType: GroupActive since: 1978
- Kuburan BandType: GroupActive since: 11 September 2001
- Kumala Sari MukhlisahCountry: IndonesiaActive since: 2001
- Kunto AjiCountry: IndonesiaPlace of birth: Yogyakarta