Mar Eliya XIV [XIII] Abulyonan (or Abolionan) (1840 - June 27, 1894) was the patriarch of the Chaldean Catholic Church from 1878 to 1894.

He studied three years in the College of the Propaganda in Rome and was ordained priest in 1865.

He was appointed Patriarch of the Chaldean Catholic Church on July 26, 1878, and confirmed by the pope on February 28, 1879.

During his patriarchate he spared no effort to improve the relations both with the Holy See and within the Chaldean Church, after the eventful reign of his predecessor Joseph Audo.

The ordinal number of his title is sometime XIV, sometime XIII, while among scholars Eliya XII is often preferred.