Yohanna Barnaba Abdallah (died 1924) was a clergyman and historian of the Yao people of central Africa.
Abdallah was born in northern Mozambique, and was the stepson of Barnaba, a village chief.
After a brief stint at Zanzibar, he took up residence at the Unangu station on the east side of Lake Malawi, eventually spending most of his career there.
[1] In 1924, Father Abdallah, en route to the coast for a holiday fell seriously ill in Medo, and died, possibly of pneumonia, on 11th Feb 1924.
[2] Abdallah was noted as a scholar of the Greek language and of the Bible, but his chief claim to fame is his Chikala cha Wayao, a seminal study of the Yao people and Yao language.