St. Catherine's Church (Finnish: Pyhän Katariinan kirkko, Swedish: S:ta Katarina kyrka) is located in Nummi, a suburb of Turku, Finland, in the same district as Turku Student Village.

It represents the old medieval stone church building tradition.

Although it was completely destroyed and has undergone several renovations, it has preserved something of its original appearance and retains the basic plan of a medieval Finnish church.

The first mention of Saint Catherine of Alexandria was in a signet with which vicar Jacob of Nummi confirmed the then episcopal election.

This article about a church building or other Christian place of worship in Finland is a stub.