Kallen is both a surname and a given name. Notable people with the name include:
Horace Kallen (1882–1974), American philosopher Jackie Kallen (born 1946), American boxing manager Kitty Kallen (1921–2016), American singer Arvid Emanuel Kallen (1895–1969), Swedish American businessman Kallen Esperian (born 1961), American singer
Fictional characters: Kallen Stadtfeld, character in the anime series Code Geass
See also Callen (disambiguation) Gunnar Källén (1926–1968), Swedish Theoretical physicist and a professor at Lund University Kalen Kellan Kylen Van der Kellen Wilberd van der Kallen (born 1947), Dutch mathematician