Yakob (Karp) (1865-1943) – bishop of Jelgava from 1936, archbishop from 1942 to 1943. >>

Alexander Yakovlev (1890-1939) – a sworn advocate. >>

Igor Yakovlev (1929-2013) – a musician, composer, teacher, sound producer. >>

Mikhail Yakovlev (1906-1978) – a lawyer. >>

Nikolay Yakovlev (1879-1956) – an architect. >>

Valeria Yakovleva (née Pogel; 1928–2023) – musicologist, teacher, journalist. >>

Eduard Yakubaitis (Jakubaitis;1924-2006) – a founder of the Riga scientific school of technical cybernetics. Director of the Institute of Electronics and Computer Engineering (1960-1992). Academician of the Latvian Academy of Sciences >>

Tamara Yakubaitis (1927-1984) – Candidate of Philology, Docent of the Russian Language Department of the Latvian State University. >>

Vasily Yanchevetsky (Vasily Yan; 1875–1954) – an author of historical novels and short stories. >>

Kirill Jankovich (1858-1939) – a physician, public figure, deputy of the Riga City Council. >>