Florian

Also Dutch: https://www.meertens.knaw.nl/nvb/naam/is/Florian

Also Albanian: https://instatemra.shinyapps.io/emra/

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/Gian_Battista_Tram%C3%A8r -- Florian Barblan
Https://www.portraitarchiv.ch/portrait?page=58
Http://www.annalas.ch/persunas/display/q:Florian

Also Provençal: https://ieo-oc.org/spip.php?page=article&id_article=290 --- Source: Institut d'Estudis Occitans

Also Romanian: https://ro.wikipedia.org/wiki/Florian_Pitti%C8%99
https://ro.wikipedia.org/wiki/Florian_%C8%98tef%C4%83nescu-Goang%C4%83
https://ro.wikipedia.org/wiki/Florian_Ghimpu [noted -ed]

According to ISTAT in 2017 were born 17 Florian in Italy.

Although Floriaan is the authentic, native Dutch form (originally, Latin names ending in -ianus always became -iaan in Dutch), it is not used as often in The Netherlands as Florian. Floriaan is rare nowadays, whereas Florian is fairly popular and has been steadily gaining in popularity since the early '80s. In fact, in 2011 the name Florian was at its most popular ever: that year, 119 newborn boys were given this name.

---

As such, 'Dutch' should also be listed in the 'Usage' section for this name. :)