The House of Pejačević or Pejácsevich (Croatian: Pejačevići, Hungarian: Pejácsevich or Pejácsevics, Bulgarian: Пеячевичи) is an old Croatian noble family, remarkable during the period in history marked by the Ottoman war in the Kingdom of Croatia and Austro-Hungarian Empire respectively. Notable members of the family were politicians, clerics, artists, senior military officers, Bans (viceroys) of Croatia and other high state officials. They were very potent and influential in the political, social, economic and cultural life of the country, and especially distinguished in the region of Slavonia. In German and Spanish, the family name was sometimes rendered Pejacsevich, i.e. a simplified variant of the Hungarian spelling.