Jens Zetlitz (26 January 1761 – 14 January 1821) was a Norwegian priest and poet.
Born in Stavanger, at the close of the 18th century he traveled to Copenhagen to study theology. He became a member of Det Norske Selskab, and became well known for his entertaining songs and drinking songs. He returned to Norway after completing his studies and served as vicar in Vikedal and later Kviteseid until he died.
He married Maren Elisabeth Bull (1761-1801). His daughter Axeliane Christine (1792-1855) married Jacob Kielland, one of the wealthiest people in Norway. The couple had five sons and five daughters. Through this marriage Jens Zetlitz had a large number of notable descendants; novelist Alexander Kielland was his great-grandnephew. The pop singer Bertine Zetlitz is the most famous currently living descendant.
- Poesier: første samling (1789)
- Eegenæs: et Digt med Anmærkninger (1793)
- Sange for den norske bondestand (1795)
- Psalmer (1795)
- En norsk Höst: et Digt (1800)
- Johan Nordahl Brun, Biskop over Bergens Stift (1805)
- Alkoran: d.e. Capitlernes Bog for 1806 (1806)
- Sange for Den Norske Bondestand (1812)
- Prædikener og Leilighedstaler (1822)
- Egenæs: et digt med anmærkninger (1825)
- 2den Deel (1825)
- Jens Zetlitz's samlede Digte (1825)
- 1ste deel (1825)
- Sange for den norske Bondestand (1842)
- Norske Almuesangeres Kløverblad: eller Bruns, Frimanns og Zetlit's Sange for den norske Bondestand. - Godtkjøbsudgave (1853)
- Ny Vise om Jernbanemoroen ved Mjøndalen (1875)
- Udvalg af Jens Zetlitz' Digte (1886)
- Reyse fra Stavanger til Wigedahl i aare (1968)
- Jens Zetlitz : et tohundreårsminne (1990)