George Kruglov (1905–1984) – a specialist in ceramics, a professor of Latvian Academy of Arts. >>

Sergei Kruk (1968) – Doctoral degree in Information and Communication Sciences (Dr. sc. inf.), Université Paris-II Panthéon-Assas (2003). >>

Inna Krutikova (1943) – an artistic leader and conductor of the junior orchestra of folk instruments «Kadans». >>

Vitaly Kucevalov (1926–1992) – a Habilitated Doctor of Engineering (Dr. habil. sc. ing.), professor, specialist in the field of energetics and electrical engineering. >>

Alexander Kudashev (1872–1917) – the designer of the first Russian aircraft. >>

Vasily Kudryachev (1869–1941) – an entrepreneur and Head of Riga Grebenshchikov Old Believers Community. >>

Mikhail Kudryavtsev (1905–after 1941) – a lawyer. >>

Konstantin Kuleyev (1880–1971) – a teacher, Director of Daugavpils Russian  gymnasium from 1923 to 1935. >>

Mikhail Kulichkov (Ramus) (1955–2010) – an artist, was a member of Riga artist group "Independent Art". >>

Dmitry Kulkov (1906–1989) – a violinist, viola player, conductor and composer. >>