K
- Milan Kac (1924 -)
- Sandi Klavžar (1962 -)
- Igor Klep
- Andrej Kobav (1593 - 1654)
- Tomaž Košir
- Joahim Košutnik (1714 - 1789)
- Jernej Kozak (1946 -)
- Edvard Kramar
- Josip Križan (1841 - 1921)
- France Križanič (1928 - 2002)
- Bogdan Krušič
- Igor Kukavica
- Klemen Kukec (???? - 1541)
- Karel Kunc (1879 - 1950)
- Ivan Kuščer (1918 - 2000)
Read more about this topic: List Of Slovenian Mathematicians