Igor Kabashkin (1954) – specialist in the field of engineering and computer sciences, professor, hab. doctor, correspondent-member of Latvian Academy of Sciences. >>

Nikolay Kachalov (1911–1997) – organist and composer. >>

Maria Kachalova (1927–2022) –a fine art expert. >>

Olga Kachalova (1916-1988) – Doctor of Biological Sciences, researcher of the Institute of Biology at the Academy of Science of Latvia. >>

Tatyana Kachalova (nee Rozenshild; 1915–2010) – Habilitated Doctor of Arts, professor of Latvian Academy of Arts. >>

Varvara Kachalova (1930–2020) – a harp player and teacher. >>

Vsevolod Kachan (1955) – Doctor of Philosophy, associate  professor of the University of Latvia. >>

Ludmila Kachkalda (1949-2010) – World Champion in rhythmic gymnastics (1967, 1973). >>

Matvey Kadek (1897-1950) – Doctors of Geography, academitian and the 1-st vice-president of the Academy of Science of Latvian SSR,  rector  of Latvian State University (1944-1949). >>

Vasily Kalberg (1893–1983) – professor, creator of the post-war school of Latvian Anatomists, rector of Riga Medical Institute (1958–1963), outstanding teacher. >>