Svetlana Kozlova (1939) – Doctor of engineering (Dr. sc. ing.), associate professor of Riga Technical University. >>

Viktor Kozyukov (1948) – engineer-chemist, candidate of technical sciences. >>

Grigory Krasilnikov (1906–1988) – assistant professor of Riga Polytechnic Institute, specialist in the fields of energetics. >>

Leah Krasinsky (1911-2009) – musicologist, teacher, lecturer and composer. >>

Ivan Krasnopyorov (1911-1989) – outstanding oboist and teacher. >>

Sergey (Stephan) Krasnopyorov (1900-1961) – composer, teacher and conductor of choir and orchestra.
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Nadezhda Kravchyonok-Feldmane (born Liebtahl; 1915-2003) – Doctor of philology ( Dr. phil.). >>

Vladimir Krikunov (1950) –  from 1976 to 1982 played for the hockey club «Dinamo» Riga.  From the November 2021 – the head coach of the Dynamo – Riga hockey team. >>