Maria (Serbian: Марија, Marija, Czech: Marie Srbská; fl. 1134–d. 1189) was Serbian princess and daughter of Uroš I, Grand Prince of Serbia. She was sister of Uroš II, Grand Prince of Serbia, and Helena, Queen of Hungary. Sometime before 1134, Maria was married to Conrad II, Duke of Znojmo, a Bohemian prince and a member of the Přemyslid dynasty.
Maria and Conrad had several children, including:
Ernest of Znojmo
Conrad II, Duke of Bohemia
Helena of Znojmo