SIS Swiss International School Zürich-Wollishofen is a private bilingual day school on the Seestrasse in the Wollishofen district of Zürich. It takes children from age four to the end of primary school: a kindergarten for ages four to six, then primary school from age six. German and English are both languages of instruction throughout. Around 170 students attend. It is one of seven SIS campuses in Switzerland; the separate SIS Zürich campus in Wallisellen continues to upper secondary and the bilingual Matura.