With a surname or pseudonym starting with L.
Niklas Lafrensen d.y. (1737–1807)
Ingbritt Lagerberg (born 1943)
Leila Lagrén (Leila Van Dyke) (born 1961)
Nathalie Lahdenmäki (born 1974)
Carl Oscar Larsson (1887–1962)
Åke Waldemar Larsson (1913–1995)
Aleksander Lauréus (1783–1823)
Henri Le Fauconnier (1881–1946)
Erik Vilhelm Le Moine (1780–1859)
Lagorio Lev Feliksovic (1826–1905)
Carl-Gustaf Lilius (1928–1998)
Birgitta Liljebladh (born 1924)
Anders Bruno Liljefors (1923–1970)
Charlotta Liljefors (born 1943)
Marianne Lindberg De Geer (born 1946)
Stig Evert Lindberg (1913–1997)
Bengt Arne Linderos (1929–1989)
Arvid Mauritz Lindström (1849–1923)
Ingrid Linnea Ruin (1881–1956)
Greta Lisa Jäderholm-Snellman (1894–1973)
Heljä Liukko-Sundström (born 1938)
Reinhold Ljunggren (1920–2006)
Sirkka-Liisa Lonka (born 1943)
Waldemar Lorentzon (1899–1984)
Fanny Lundahl-Sundblad (1853–1918)
Britt Lundbohm-Reutersvärd (1917–2001)
Gotthard Lundquist (1908–1988)
Kristian Lundstedt (1894–1959)
Einar Lynge-Ahlberg (1913–1980)
Anna Löppönen-Kauhanen (1873–1947)