The name Irene traces its origins to the Greek word "eirene", meaning peace. It is derived from the Greek goddess of peace, Eirene, who was one of the Horae, the personifications of order in nature and the seasons. The name first emerged in ancient Greece during the classical period.

Eirene was a prominent figure in Greek mythology, often depicted carrying a cornucopia and sceptre. As the goddess of peace, she represented the peaceful times between wars and conflicts. Her name was given to mortal women as a symbol of tranquility and serenity.

The name Irene gained popularity in the early Christian era, as it was borne by several early Christian saints and martyrs. One of the most notable was Saint Irene of Rome, who lived in the 4th century AD and is venerated as a martyr in the Roman Catholic Church.

In the Byzantine Empire, the name Irene was particularly popular among the imperial family. The most famous bearer was Empress Irene of Athens, who ruled as the first female monarch of the Byzantine Empire from 797 to 802 AD. She played a significant role in restoring the veneration of icons during the iconoclastic controversy.

Another notable historical figure named Irene was Irene of Hungary, a 12th-century Byzantine empress who was the wife of Emperor John II Komnenos. She was known for her diplomatic skills and played an influential role in the affairs of the empire.

In the 19th century, the name Irene gained popularity in English-speaking countries, partly due to the influence of the Greek myth and its association with peace. One famous bearer was Irene Foote (1821-1912), an American educator and advocate for women's rights.

Another notable Irene was Irene Joliot-Curie (1897-1956), a French chemist and physicist who won the Nobel Prize in Chemistry in 1935 for her work on artificial radioactivity. She was the daughter of the famous scientists Marie and Pierre Curie.

Throughout history, the name Irene has been associated with qualities of peace, serenity, and tranquility, reflecting its origins in Greek mythology. Its enduring popularity across cultures and eras is a testament to the universal appeal of these ideals.