Your Holiness is the formal style

Style (manner of address)

A style of office, or honorific, is a legal, official, or recognized title. A style, by tradition or law, precedes a reference to a person who holds a post or political office, and is sometimes used to refer to the office itself. An honorific can also be awarded to an individual in a personal...

 by which the Coptic Pope and the Catholic Pope are addressed, and is properly the superlative style, taking precedence before all other styles; when rendered in the third person, "His Holiness

His Holiness

His Holiness is the official style or manner of address in reference to the leaders of certain religious groups. In Christianity, specifically the Orthodox Church, the Coptic Orthodox Church, Armenian Orthodox Church, Syriac Orthodox Church, Malankara Orthodox Syrian Church and the Roman Catholic...

" may be abbreviated to "HH", but this abbreviation more commonly refers to "His Highness". The Patriarch of Constantinople

Patriarch of Constantinople

The Ecumenical Patriarch is the Archbishop of Constantinople – New Rome – ranking as primus inter pares in the Eastern Orthodox communion, which is seen by followers as the One, Holy, Catholic, and Apostolic Church....

 is also styled Your All Holiness.

Other ecclesiastical dignitaries enjoy inferior styles. A Cardinal of the Holy Roman Church enjoys the rank and precedence of a sovereign prince, and is styled Your Eminence. A Patriarch

Patriarch

Originally a patriarch was a man who exercised autocratic authority as a pater familias over an extended family. The system of such rule of families by senior males is called patriarchy. This is a Greek word, a compound of πατριά , "lineage, descent", esp...

 of an Eastern Rite

Eastern Christianity

Eastern Christianity comprises the Christian traditions and churches that developed in the Balkans, Eastern Europe, Asia Minor, the Middle East, Northeastern Africa, India and parts of the Far East over several centuries of religious antiquity. The term is generally used in Western Christianity to...

 Church is styled Your Beatitude, and an Archbishop

Archbishop

An archbishop is a bishop of higher rank, but not of higher sacramental order above that of the three orders of deacon, priest , and bishop...

 or Bishop

Bishop

A bishop is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox Churches, in the Assyrian Church of the East, in the Independent Catholic Churches, and in the...

 is styled Your Excellency.

The Dalai Lama

Dalai Lama

The Dalai Lama is a high lama in the Gelug or "Yellow Hat" branch of Tibetan Buddhism. The name is a combination of the Mongolian word далай meaning "Ocean" and the Tibetan word bla-ma meaning "teacher"...

is also addressed as with Your Holiness in English, though some have argued that this is a questionable translation of a word that could also be rendered Your Presence.