The Church of the Holy Ghost or Church of the Holy Spirit (Estonian: Püha Vaimu kirik) is a medieval Lutheran church in the old town district of Tallinn, Estonia. It is located behind Raekoja plats, and lies opposite the Great Guild and Maiasmokk, Tallinn's oldest café.
The church has a plain, white-washed exterior with crow-stepped gables, an octagonal tower with the above-mentioned reconstructed renaissance spire and few but rather large Gothic windows with fine stone dressing. The stained glass windows are late 20th century. Most noteworthy in the exterior is the finely carved clock, a work by Christian Ackermann (late 17th century).