Sissel is a Norwegian female given name, a variant of Cecilia.
Notable people called Sissel include:
Sissel Solbjørg Bjugn (1947–2011), a Norwegian poet and children's writer
Sissel Birgitte Breie (born 1953), a Norwegian diplomat
Sissel Buchholdt, née Brenne (born 1951), a Norwegian handball player
Sissel Grottenberg (born 1956), a retired Norwegian long-distance runner
Sissel Knutsen Hegdal (born 1965), a Norwegian politician for the Conservative Party
Sissel Kyrkjebø (born 1969), also known as Sissel, Norwegian singer
Sissel Lange-Nielsen, née Herlofson (born 1931), a Norwegian writer, literary critic, and journalist
Sissel Lie (born 1942), a Norwegian novelist, translator, playwright and professor in Romance languages and literature at the University of Trondheim
Sissel Benneche Osvold (born 1945), a Norwegian journalist
Sissel Vera Pettersen (born 1977, a Norwegian jazz vocalist, saxophonist and composer
Sissel Rønbeck (born 1950), a Norwegian politician for the Labour Party
Sissel Sellæg (1928–2014), a Norwegian actress
Sissel Tolaas, a contemporary Norwegian installation artist most widely known for her work with odours