Zetlitz is a given name. Notable people with the name include:
Axel Christian Zetlitz Kielland (1853–1924), Norwegian civil servant and diplomat Bertine Zetlitz (born 1975), Norwegian pop singer Christian Zetlitz Bretteville (1800–1871), Norwegian politician Henrik Andreas Zetlitz Lassen (1818–1890), Norwegian politician Jens Zetlitz (1761–1821), Norwegian priest and poet Jens Zetlitz Kielland (1816–1881), Norwegian consul and artist Jens Zetlitz Monrad Kielland (1866–1926), Norwegian architect