Veronica

Also Flemish: http://www.names.be/meisjesnamen.html?met=Veronica&sort=beldesc

Also used in the Netherlands and the Netherlands Antilles: https://www.meertens.knaw.nl/nvb/populariteit/naam/Veronica

In the 19th century United States, Fanny was the common pet form of Veronica, probably because Veronica itself was often respelled as "Faronica" back then. It is common for a woman who is "Veronica" in one U.S. census to be "Fanny" in another, and there is a somewhat famous example in the mother of candy millionaire Milton Hershey, who was Veronica "Fanny" Snavely Hershey.

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://sursassiala.ch/2015/01/15/familienforschung/
https://www.portraitarchiv.ch/portrait/show/375268
https://www.portraitarchiv.ch/portrait?page=304
http://www.annalas.ch/persunas/display/q:Veronica

Vern is also an acceptable nickname for Veronica.

Also used in Swedish and Norwegian: https://www.nordicnames.de/wiki/Veronica

Also Gascon, Provençal and Languedocian: https://ieo-oc.org/spip.php?page=article&id_article=300 --- Source: Institut d'Estudis Occitans

Veronica is also Russian, sometimes used alongside Veronika in Russia. The name day for Veronica in Russia is October 17.

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Scripts: Вероника (Russian)

Also Banatswabian: https://ofb.genealogy.net/famreport.php?ofb=zichydorf&ID=I34569&nachname=Beness&modus=&lang=de
https://ofb.genealogy.net/famreport.php?ofb=zichydorf&ID=I33101&nachname=Nagy&modus=&lang=de

Also Sardinian: https://docplayer.it/45613861-Antioco-sant-326-antoninu-sant-antonio-abate-sant-driano-sant-antonio-da-padova-sant-agata-sant-sant-ada-adi-agata-lulla-agnese-sant.html

Also Corsican: http://www.corsicami.com/corse%20prenoms/prenoms_corses_m02.htm

In 2018, 30 is the most common age for an American (U.S.) Veronica who is registered female with the Social Security Administration. It is the 286th most common female first name for living U.S. citizens.

This name is frequently used in The Netherlands as well.

This name is also used in Russia (third syllable stressed).

Ronja, pronounced "Ron-yah", is the Russian short form of Veronica/Veronika.