Bolesław II the Rogatka or Boleslaw II the Horned (Polish: Boleslaw II Rogatka, known also as Boleslaw II the Bald, Polish: Boleslaw II Lysy; ca.

1220/5 – 26/31 December 1278) is a Duke of Kraków briefly in 1241, of Southern Greater Poland during 1241–1247, and Duke of all Silesia–Wrocław from 1241 until 1248, when it is divided between him and his brothers.

He is Duke of Środa Ślaska in Silesia from 1277 onward.

During his reign the second Mongol raid against Poland, led by Nogai Khan occurs.

He is the eldest son of Henry II the Pious, Duke of Wroclaw, by his wife Anna, daughter of King Ottokar I of Bohemia.