Nina 1

In German Nina (NEE-nah) also is a diminutive of Katharina. Both are very common names.

Also Estonian: https://www.stat.ee/nimed/Nina

Also Greek, as a diminutive of Konstantina.

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(Information from name #331141 originally submitted by an anonymous user)

Also Breton, as a diminutive of Gwenina and Ninnog.

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https://fr.m.wikipedia.org/wiki/Liste_de_pr%C3%A9noms_bretons

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(Information from name #403754 originally submitted by user guasguendi)

Also Gascon, as a short form of Joanina.

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https://ieo-oc.org/spip.php?page=article&id_article=300 --- Source: Institut d'Estudis Occitans

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(Information from name #363226 originally submitted by an anonymous user)

The name Nina was given to 933 girls born in the US in 2020.

Also used in Spanish as a diminutive of Antonina, Saturnina and similar names or as a name on its own: https://www.ine.es/widgets/nombApell/index.shtml?L=1

Also can be full form of Nina is Saturnina.

Also Romansh. Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
https://rm.wikipedia.org/wiki/Nina_Camenisch
https://nossaistorgia.ch/entries/vxYZe7v7DA5
https://www.portraitarchiv.ch/portrait?page=101

Also Bulgarian, spelled Нина (and usually a short form of Nikolina): https://bg.wikipedia.org/wiki/%D0%9D%D0%B8%D0%BD%D0%B0 [noted -ed]

Also Hungarian: https://hu.wikipedia.org/wiki/Nina_(keresztn%C3%A9v)

Also Galician: http://www.ige.eu/igebdt/esq.jsp?idioma=gl&ruta=onomast/nomes.jsp
https://gl.wikipedia.org/wiki/Lista_de_nomes_femininos_en_galego#H

Also Sardinian: https://it.wikipedia.org/wiki/Prenomi_sardi#M

Also Corsican: http://www.corsicami.com/corse%20prenoms/prenoms_corses_m01.htm

Also Romanian: https://ro.wikipedia.org/wiki/Nina_Arbore

Also used in Estonia: https://et.wikipedia.org/wiki/Nina_(eesnimi)

Also Belarusian, spelled Ніна. You'll find numerous bearers on social media. [noted -ed]

In 2018, 30 is the most common age for an American (U.S.) Nina who is registered female with the Social Security Administration. It is the 541st most common female first name for living U.S. citizens.

Also used in Finland, Nina is actually more common than the "more Finnish" form Niina. The names have different pronunciations. Nina's has a short vowel: NI-nu. [noted -ed]

This name is also used in Romania.

Very popular girls name in Slovenia. [noted -ed]