Teodora

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://www.portraitarchiv.ch/portrait?page=106

Also Croatian: https://actacroatica.com/en/name/Teodora/

Also Lithuanian: https://lt.wikipedia.org/wiki/Teodora_Liaugaudait%C4%97-Ma%C4%8Diulien%C4%97
https://lt.wikipedia.org/wiki/Teodora_Miknevi%C4%8Dien%C4%97
https://lt.wikipedia.org/wiki/Teodora_Staugaitien%C4%97
https://lt.wikipedia.org/wiki/Birut%C4%97_Teodora_Visokavi%C4%8Dien%C4%97
https://www.tevu-darzelis.lt/vaiku-vardai/teodora/

Also Slovene: https://sl.wikipedia.org/wiki/Teodora

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#D

The name is also used in Denmark, and Norway.

It's also used in Slovenia as a very rare name. ;)