About Sonja
Sonja is an established international spelling of Sonya, the Russian familiar form of the Greek name Sophia, meaning “wisdom.” Its j usually has a y sound in the European languages where the spelling is established. Norwegian skater Sonja Henie and Sonja Haraldsen, who married Norway's Crown Prince Harald, give it especially strong Scandinavian associations.
Sophia, Sonya, and Sonja
The name's oldest meaning comes from Greek sophia, “wisdom.” Sonya developed as a Russian diminutive of Sophia, and Sonja represents that familiar form in languages including German, Dutch, Finnish, and several Scandinavian languages.
Sonia is another related spelling. The three forms often look almost interchangeable to an English reader, but their written consonants reflect different language conventions. Sonja's j is not normally the English j of “jam.”
German Sonja is approximately ZON-yah, while Finnish is closer to SON-yah. Both have two syllables and stress at the beginning. Sophia and Sofia provide longer members of the same family, while Sonja has developed an independent life as a full given name.
Sonja Henie on ice
Norwegian figure skater Sonja Henie won three consecutive Olympic gold medals, in 1928, 1932, and 1936. The victories came at St. Moritz, Lake Placid, and Garmisch-Partenkirchen respectively.
She also won ten consecutive world championships from 1927 through 1936. That run connected her name with an extended period of dominance rather than a single Olympic performance. Her competitive career made her one of the most recognizable figures in the early history of women's skating.
Henie later moved into professional ice shows and film performance. The transition carried the name from sporting results to entertainment, keeping it before audiences after her amateur championships had ended. Her public career gives Sonja a particularly visible twentieth-century namesake.
A Norwegian royal wedding
Sonja Haraldsen married Crown Prince Harald in Oslo Cathedral on August 29, 1968. They had first met nine years earlier, and the marriage attracted considerable attention because she was not from a royal or noble family.
Their engagement was announced on March 19 after King Olav gave his consent. The wedding joined a private relationship with the formal traditions of the Norwegian monarchy, bringing her first name into international coverage.
The procession traveled from the Royal Palace to the cathedral through streets decorated with flags and flowers. That public celebration gives Sonja another Norwegian association, separate from Henie's sporting fame. Both women made the same spelling visible beyond the languages in which it was already established.
American popularity
Sonja's strongest American female ranking was #180 in 1938, when 1,117 girls received it. Its largest annual count came later, in 1968, with 1,339 births.
The count was 397 in 1980 and 123 in 2000. In 2025, thirty-seven American girls received Sonja, ranking #3,965. Its American history contains more than one period of visibility, while Sonya and Sonia have separate totals.
Sources & methodologyReferences, data & attribution
Meaning and history draw on the references below. American popularity figures use published Social Security Administration records for this exact spelling; counts below five for a name, sex, and year are omitted. Existing Wiktionary material is available under CC BY-SA. Informal shortening suggestions are identified in the prose.
- Wiktionary: Sonja (English)
- Wiktionary: Sonja (Danish)
- Wiktionary: Sonja (Faroese)
- Wiktionary: Sonja (Finnish)
- Wiktionary: Sonja (German)
- Wiktionary: Sonja (Norwegian)
- Wiktionary: Sonya (English)
- Social Security Administration: national name data
- Wikidata: Sonja Henie
- Wikidata: Queen Sonja of Norway
- Wikidata: Sonja Lang
- Wikidata: Sonja Sohn
- Wikidata: Sonja Gerhardt
- Wikidata: Sonja Ziemann
- Wikidata: Sonja Vasić
- Wikidata: Sonja Edström
- Olympedia: Sonja Henie
- Norwegian Royal Court: 1968 wedding
Wiktionary material is available under CC BY-SA 4.0.
How popular is Sonja?
In 2025, Sonja ranked #3,965 among girls in the United States, with 37 recorded uses. The U.S. birth records first list this spelling for girls in 1906; its largest annual count was 1,339 in 1968. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.