Kallen
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
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