St. Hyacinth's Church is a Gothic building, formerly a church, in Vyborg, Leningrad oblast, Russia.
It was built in the sixteenth century as a private church for members of the nobility, and became a Roman Catholic church dedicated to Saint Hyacinth in 1802.
In 1970 the neglected and disused building was restored for use as a children's art school. It is now an art gallery.
The wrought iron railings here once belonged to Cathedral of the Transfiguration, Vyborg.