S10 (pronounced 'Es Teen'; real name is Stien den Hollander, born 2000) is a Dutch rapper and singer, originally from the town of Hoorn, The Netherlands.

She was only 16 years old when she was signed to Dutch hiphop label, Noah's Ark, in January 2018. Her albums Antipsychotica (2017) and Lithium (2018) were named after medication typically prescribed for psychosis and manic depression.

Snowsniper (2019) was regarded by many as S10's proper full-length début album. Its follow-up, Vlinders, came out in November 2020.