The leader of a patriarchy (system of power where males predominate)

Kzinti Patriarch

A patriarchate is the office or jurisdiction of a patriarch. A patriarch, as the term is used here, is...

Patriarch, the highest-ranking bishops of the autocephalous churches in Eastern Orthodoxy, Oriental Orthodoxy, the Roman Catholic Church, and the Assyrian Church of the East

Patriarch (Mormonism), the Melchizedek Priesthood office in the Church of Jesus Christ of Latter-Day Saints that is called evangelist in the New Testament.

Patriarchs (Bible), prominent figures in the Hebrew scriptures, especially Abraham, Isaac, and Jacob

Nasi, the head of the Supreme Court (Sanhedrin) of Israel from 191 BCE to 425 CE.

Matriarch, the corresponding female term to some of these senses

Patriarch (Buddhism), a title for a particular group of high ranking Buddhist monastics of various who are heads and successors to their respective sects (such as Bodhidharma of the Ch'an school).