z Rožmberkaⓘ; 13 January 1403 – 28 April 1462) was an important Bohemian nobleman who, after the Battle of Lipany, became a recognized leader of the Catholic lords in Bohemia.

Oldřich was initially sympathetic for the Hussite movement, a position influenced by his guardian Čeněk of Wartenberg.

However, after the Hussites burned down the town of Sezimovo Ústí in 1420 and founded Tábor on the very northern border of the Rosenberg State [cs], Oldřich became a leading ally of Emperor Sigismund and acted as a negotiator and diplomat.

In addition to property gains, Oldřich II forged documents stating the Rosenberg family was to receive special privileges from the monarchy.

[1] Oldřich II also falsified a legend about the origin of the Rosenbergs from the ancient Roman family Ursini.