The most notable bearer of the name was Cyrus the Great, the founder of the Achaemenid Persian Empire in the 6th century BC. He is famous in the Old Testament for freeing the captive Jews and allowing them to return to Israel after his conquest of Babylon. As an English name, it first came into use among the Puritans after the Protestant Reformation.
This name has been used in the English-speaking world since the Protestant Reformation. In America it received a boost in popularity after the birth of Esther Cleveland (1893-1980), the daughter of President Grover Cleveland [1].
The name received a boost in popularity after it was borne by the antagonist in the horror movie The Ring (2002).
This name was also borne by a powerful 10th-century ruler of Bulgaria who expanded the empire to its greatest extent.
This name appears in the New Testament belonging to a companion of Saint Paul. He became the first bishop of Crete and was the recipient of one of Paul's epistles. This was also the praenomen of all three Roman emperors of the 1st-century Flavian dynasty, and it is the name by which the second of them is commonly known to history. Shakespeare later used it for the main character in his tragedy Titus Andronicus (1593). As an English name, Titus has been occasionally used since the Protestant Reformation.
In Georgia, this name is a diminutive of Valentina and Valerian, though there can certainly be cases where it is the georgianized form of the aforementioned Valya. In this day and age, Valia is primarily used on women in Georgia.
In Greece, this name is strictly feminine and is a pet form of Vasilia and Vasiliki.
Known bearers of this name include the Georgian revolutionary Valerian "Valia" Bakhtadze (1896-1930) and the Greek model Valia Kakouti (b. 1981).