| Kaija | 1991 |
| Kali | 1992 |
| Kaliopi | 2012 |
| Kalomira | 2008 |
| Karel Gott | 1968 |
| Kari Kuivalainen | 1986 |
| Karina | 1971 |
| Karmen Stavec | 2003 |
| Karolina Goceva | 2007 |
| Karolina Gocheva / Каролина Гочева | 2002 |
| Karoline Krüger | 1988 |
| Kasia Kowalska | 1996 |
| Kasia Moś | 2017 |
| Katarína Hasprová | 1998 |
| Kate Gulbrandsen | 1987 |
| Kate Miller-Heidke | 2019 |
| Katerine Duska | 2019 |
| Kathy Kirby | 1965 |
| Kathy Leander | 1996 |
| Kati Wolf | 2011 |
| Katja Ebstein | 1970 1971 1980 |
| Katri Helena | 1979 1993 |
| Katrina & the Waves | 1997 |
| Katy Bødtger | 1960 |
| Kayahan Acar | 1990 |
| KEiiNO | 2019 |
| Kejsi Tola | 2009 |
| Kenan Doğulu | 2007 |
| Kenneth McKellar | 1966 |
| Keti Garbi / Καίτη Γαρμπή | 1993 |
| Ketil Stokkan | 1986 1990 |
| Kiev Connolly & the Missing Passengers | 1989 |
| Kikki Danielsson | 1985 |
| Kim Jackson | 1991 |
| Kirka | 1984 |
| Kirsti Sparboe | 1965 1967 1969 |
| Klips Ve Onlar | 1986 |
| Knez | 2015 |
| Knut Anders Sørum | 2004 |
| Kobi Marimi | 2019 |
| Koit Toome | 1998 |
| Kojo | 1982 |
| Koldun / Колдун | 2007 |
| Kølig Kaj | 1997
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