Divi Blasii is a Gothic church in the Thuringian town of Mühlhausen, central Germany. Besides St Mary's, it is one of Mühlhausen's two principal churches.
Divi Blasii is a three-aisle, cruciform hall church, situated on the Untermarkt in the historical centre of the town. The elaborately designed display façade with tracery, pinnacles and a wheel window on the north side is located on an old trade route. Today, Divi Blasii is the central parish church of the Lutheran parish of Mühlhausen within the Protestant Church in Central Germany.