Oldřich (Latin: Odalricus, Udalrichus; German: Odalric, Udalrich; c. 989 – 9 November 1034 or 1042), a member of the Přemyslid dynasty, was Duke of Bohemia from 1012 to 1033 and briefly again in 1034.

When Boleslaus III was deposed by the rival Vršovci dynasty the next year and the Polish ruler Bolesław I the Brave invaded Bohemia, King Henry II of Germany intervened.

However, Bretislaus's efforts to occupy adjacent territories in what is today Slovakia by marching against the forces of the Kingdom of Hungary failed in 1030 due to the jealousy of the emperor, who reached an agreement with King Stephen I.

His absence raised the ire of the emperor and Conrad, busy with events in Burgundy, charged his son Henry III with punishing the recalcitrant Bohemian.

According to legend rendered by the medieval chronicler Cosmas of Prague, Duke Oldřich about 1002 married a Božena, daughter of Křesina, after discarding his first wife on the grounds that they were childless.