Bartholomew of Bologna (died 1333), also known as Bartholomaeus Parvus (the Little), was a Dominican missionary, sent by Pope John XXII to Cilician Armenia, where he interacted with the Armenian nobles and the ruling Mongols.
Bartholomew was consecrated a bishop, in charge of the city of Maragha. Arriving around 1318–1320, he learned the local language, built a monastery, and set to work converting many Armenians, including Nestorians and Muslims. He later moved as bishop to Nachidiewan.