In his new additional role Archbishop Twal will promote the university and preside at various official and public functions.
Commenting on the appointment of Archbishop Twal, Christian Brother Daniel Casey, vice chancellor, said, "His knowledge and experience both in Palestine and internationally will be of great benefit to Bethlehem University."
Archbishop Twal, 65, was appointed coadjutor for the Latin Patriarchate of Jerusalem by Benedict XVI last September.
Previously, he has served as archbishop of Tunisia, carried out diplomatic service in the apostolic nunciatures of Honduras, Germany and Peru, and worked in the Council of Political Affairs for the Vatican's Secretariat of State.
Bethlehem University of the Holy Land is a Catholic co-educational institution of higher learning founded in 1973 and is open to students of all faiths. The first university established in the West Bank, it educates about 2,200 students.