Saint Hypatius of Bithynia (died ca. 450) was a monk

Monk

A monk is a person who practices religious asceticism, living either alone or with any number of monks, while always maintaining some degree of physical separation from those not sharing the same purpose...

 and hermit

Hermit

A hermit is a person who lives, to some degree, in seclusion from society.In Christianity, the term was originally applied to a Christian who lives the eremitic life out of a religious conviction, namely the Desert Theology of the Old Testament .In the...

 of the fifth century. A Phrygia

Phrygia

In antiquity, Phrygia was a kingdom in the west central part of Anatolia, in what is now modern-day Turkey. The Phrygians initially lived in the southern Balkans; according to Herodotus, under the name of Bryges , changing it to Phruges after their final migration to Anatolia, via the...

n, he became a hermit at the age of nineteen in Thrace

Thrace

Thrace is a historical and geographic area in southeast Europe. As a geographical concept, Thrace designates a region bounded by the Balkan Mountains on the north, Rhodope Mountains and the Aegean Sea on the south, and by the Black Sea and the Sea of Marmara on the east...

. He then traveled to Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

 and then Chalcedon

Chalcedon

Chalcedon , sometimes transliterated as Chalkedon) was an ancient maritime town of Bithynia, in Asia Minor, almost directly opposite Byzantium, south of Scutari . It is now a district of the city of Istanbul named Kadıköy...

 with another hermit named Jason. He became abbot

Abbot

The word abbot, meaning father, is a title given to the head of a monastery in various traditions, including Christianity. The office may also be given as an honorary title to a clergyman who is not actually the head of a monastery...

 of a hermitage

Hermitage (religious retreat)

Although today's meaning is usually a place where a hermit lives in seclusion from the world, hermitage was more commonly used to mean a settlement where a person or a group of people lived religiously, in seclusion.-Western Christian Tradition:...

 at Chalcedon.

He was an opponent of Nestorianism

Nestorianism

Nestorianism is a Christological doctrine advanced by Nestorius, Patriarch of Constantinople from 428–431. The doctrine, which was informed by Nestorius's studies under Theodore of Mopsuestia at the School of Antioch, emphasizes the disunion between the human and divine natures of Jesus...

 and sheltered Saint Alexander Akimetes and others whose safety was threatened by the Nestorians.

He is credited with halting a revival of the Olympic games

Olympic Games

The Olympic Games is a major international event featuring summer and winter sports, in which thousands of athletes participate in a variety of competitions. The Olympic Games have come to be regarded as the world’s foremost sports competition where more than 200 nations participate...

 because of their pagan origins.http://www.catholic-forum.com/saints/sainth7i.htm

His feast day

Calendar of saints

The calendar of saints is a traditional Christian method of organizing a liturgical year by associating each day with one or more saints and referring to the feast day of said saint...

 is June 17 in the Eastern Orthodox and Byzantine Catholic Churches.

See also

• Desert Fathers
  Desert Fathers
  The Desert Fathers were hermits, ascetics, monks, and nuns who lived mainly in the Scetes desert of Egypt beginning around the third century AD. The most well known was Anthony the Great, who moved to the desert in 270–271 and became known as both the father and founder of desert monasticism...
  
  
• Poustinia
  Poustinia
  A poustinia is a small sparsely furnished cabin or room where one goes to pray and fast alone in the presence of God. The word poustinia has its origin in the Russian word for desert...