Jette Jantine Clasen (born 1998 in Bargteheide, Germany) is a freelance theatre writer, director and theatre educator based in Zurich. She studied Scenic Arts in Hildesheim, where she was also co-editor of the literary magazine BELLA triste. It was during her studies that she began writing her first dramatic texts. Her play TINYHOUSE was selected for the 2022 Playwriting Lab at Theater Münster.
Her studies in Theatre Directing at the Zurich University of the Arts (ZHdK) brought her to Zurich, where she also completed the Dramenprozessor 2024/25 development and training programme. As part of the programme, she developed her play UNSERE FREITAGE (EIN ARCHIV), which was shortlisted for the 2026 Hans-Gratzer Prize.
In the 2026/27 season, Jette Jantine Clasen is an Atelier Writer at DT. She is also writing for Theater Strahl in Berlin, developing a production for young audiences with the uantuzten theaterkollektiv, and co-leading a youth group at Schauspielhaus Zürich.