Petar Tilikonis (died 1439) was a Croatian prelate of the Catholic Church who served as the bishop of Makarska from 1394 and administrator of Duvno from 1429 to his death in 1439.
Before his episcopal appointment, Tilikonis was a Franciscan friar and an apostolic confessor. Pope Boniface IX appointed Tilikonis the bishop of Makarska on 7 September 1394. During his time, his diocese was called the Diocese of Dalmata, and most of it was located in the Duchy of Saint Sava. The territory of his diocese was contested between Sandalj Hranić and brothers Juraj and Vukašin Vojsalić, the nephews of Hrvoje Vukčić Hrvatinić. Juraj and Vukašin controlled the seat of the Diocese of Makarska, the town of Mukur and other possessions: Labčanj, Gradac, Drvenik, Pasičina and Miluša. These possessions were taken from them by Sandalj. After a conflict between Sandalj and the Bosnian king Ostoja, Ostoja recognised these possessions as Sandalj's in 1417. However, Juraj's and Vukašin's descendants managed to return these possessions in 1434, which was recognised by Juraj as well. Due to these conflicts, Tilikonis could not reside in the diocese's seat, Mukur, living instead on the territory of the Archdiocese of Split. According to Marijan Žugaj, Tilikonis served as the bishop from 1394 to 1439. The same author states that Tilikonis administered the neighbouring Diocese of Duvno from 1429 as well.