Yishun Town Secondary School (YTSS) is a co-educational government autonomous secondary school in Yishun, Singapore.

The school was first established in 1986, originally sharing its premises with Yishun Secondary School and Yishun Junior College.

[1] In 1988, the school moved into a new S$8.1 million campus along Yishun Street 21.

Apart from the inter-school competitions among students, parent-teacher races are also featured to engage the parents and school staff.

This yearly event was stopped in 2017 due to unknown reasons.