Peter Siklósi (Hungarian: Siklósi Péter, Serbo-Croatian: Petar Sikloši/Петар Сиклоши; died on 3 January 1379) was a Hungarian bishop. Peter served as cleric in the Slavonian town of Đakovo, the residence of the bishops of Bosnia since they were exiled from Bosnia itself in the previous century. Peter was chosen to succeed the Franciscan Peregrin Saxon on the episcopal throne following the latter's death in January 1356. The relations between the Ban of Bosnia and the Bishop of Bosnia had never been better during Peregrin's episcopate, but deteriorated again once Peter took over. Peter was one more in the series of absent bishops whose authority was eclipsed by Bosnian Franciscans.