Teofil

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://nossaistorgia.ch/entries/Y2vV5L6Ze3O
https://www.portraitarchiv.ch/portrait?page=83

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

Also Romanian: https://ro.wikipedia.org/wiki/Teofil_V%C3%A2lcu
https://ro.wikipedia.org/wiki/Teofil_Ioncu
https://ro.wikipedia.org/wiki/Teofil_T._Vescan [noted -ed]

Also Czech (albeit rare): https://cs.wikipedia.org/wiki/Svat%C3%BD_Teofil
https://krestnijmeno.prijmeni.cz/search.php?name=Teofil&t=1

Also Slovak: https://sk.wikipedia.org/wiki/Teofil

Also used in Sweden but not very common. Teo is used for short.