With a surname or pseudonym starting with J.
Anja Jaatinen-Winqvist (born 1934)
Rina Jacobsen Viitala (born 1966)
Brittmari Jacobson (1918–1992)
Brittmari Jacobsson (1918–1992)
Johan Jakob Reinberg (1823–1896)
Hans-Agne Jakobsson (1919–2009)
Breda Johan Fredrik (1788–1835)
Höckert Johan Fredrik (1826–1866)
Erik Johan Löfgren (1825–1884)
David Johannes Niemelä (born 1874)
Iwan Constantin Johansson (1887–1946)
Sven-Erik Johansson (1925–2020)
Ulla Ragnhild Johansson (1931–1993)
Lisa Johansson-Pape (1907–1989)
Augustus Edwin John (1878–1961)
Ilkka Juhani Takalo-Eskola (born 1937)
Ulla-Kirsti Junttila (born 1950)