Jani Ndoni Zengo (Papajani) (1832–1913) was an Albanian photographer, calligrapher, teacher and priest.

Zengo finished his elementary schooling in Dardhë and later attended the Greek Gymnasium of Korçë.

He was sent by his father to Mount Athos, Greece where he learned the craft of xylography which he practiced as a profession.

In a manuscript dated 15.01.1866, Jani is mentioned to have created an alphabet in the Albanian language containing 33 letters.

In 1869, he married a local villager by the name of Tushe Gjerazi and shortly thereafter migrated back to Greece, where he worked as a bookkeeper in the city of Larissa and then as a wood decorator and photographer in Thessaly province.