It has never been very common as a given name in the English-speaking world, though it rose in popularity after the middle of the 20th century. In the United States it is frequently an African-American name. In Lithuania it may be given in honour of the Lithuanian-American aviator Steponas Darius (1896-1933), who died attempting to fly nonstop from New York to Lithuania. His surname was an Americanized form of the original Darašius.
This is not the usual spelling in any of the Scandinavian languages (in Sweden and Denmark it is Freja and in Norway it is Frøja) but it is the common spelling of the goddess's name in English. In the 2000s it became popular in Britain.
The name has been very common throughout the English-speaking world since end of the 20th century. In the United States it reached a high point in 2017, when it ranked as the fifth most popular name for boys.
In England Oliver was a common medieval name, however it became rare after the 17th century because of the military commander Oliver Cromwell, who ruled the country following the civil war. The name was revived in the 19th century, perhaps due in part to the title character in Charles Dickens' novel Oliver Twist (1838), about a poor orphan living on the streets of London. It became very popular at the beginning of the 21st century, reaching the top rank for boys in England and Wales in 2009 and entering the top ten in the United States in 2017.
This name was known among the Normans due to the Welsh bishop Saint Samson, who founded monasteries in Brittany and Normandy in the 6th century. In his case, the name may have been a translation of his true Celtic name. As an English name, Samson was common during the Middle Ages, having been introduced by the Normans. It is currently most common in Africa, especially in countries that have an British colonial past.
This name was borne by a 12th-century empress of the Latin Empire in Constantinople, who was originally from Flanders. It was also used by her descendants in the royal families of Hungary (spelled Jolánta) and Spain (sometimes spelled Violante). The Blessed Yolanda of Poland was a daughter of Béla IV of Hungary who married a Polish duke. It was also borne by Yolanda of Vianden, a 13th-century countess from Luxembourg who joined a convent against her parents' wishes, later becoming the subject of medieval legend. Another notable bearer was a 15th-century duchess of Lorraine, the subject of the opera Iolanta (1892) by Pyotr Ilyich Tchaikovsky.