Gleb Koroteyev (1925–2018) – one of the well-known soundman of Latvia, life grant holder of Culture Capital fund. >>

Nadezhda  Korshunova (née Philbrant, by her first husband Dombrovskaya, then De Sterk, in the last marriage of Korshunov; 1896–1979) – a singer, lyric soprano. >>

Igor Koshkin (1926–1977) – a ballet dancer and teacher. >>

Arcady Koshko(1867-1928) – Riga's famous detective. >>

Tatiana Kosinsky (1903–1981) – an icon painter. >>

Vladimir Kosinsky (1868–1938) – professor, specialist in the field of political economics. Worked at the  Riga Polytechnic Institute from 1901 to 1904 and at the University of Latvia from 1928 to 1938. >>

Vladimir Kosinsky (1908–1959) – an assistant at the faculty of medicine of the University of Latvia. After the war worked  at Stradinya Republic Clinic hospital. >>

Marina Kostenetskaya (1945) – a writer, broadcaster, essay writer and public person. >>

 Viktor Kostenich (1881–1959) – a sworn advocate. >>

Leonid Kostrubin (1942) – a singer (bariton) and musician instrumentalist. >>