|Italy, France, Iberia|
Italo-Western is, in some classifications, the largest branch of the Romance languages. It comprises two of the branches of Romance languages: Italo-Dalmatian and Western Romance. It excludes the Sardinian language and Eastern Romance.
- The Dalmatian language was spoken in the Dalmatia region of Croatia. It became extinct in the 19th century.
- The Istriot, spoken on the Istrian peninsula of Croatia, Slovenia, and Italy.
- The Tuscan language includes Standard Italian and various forms of Regional Italian.
- The Central Italian languages, or Latin-Umbrian-Marchegian, include the varieties of Romanesco and Marchigiano.
- Southern Italian is spoken in Central-Southern Italy.
- The Italian of the Far South:
- The Venetian language is sometimes added to Italo-Dalmatian when it is excluded from Gallo-Italic, and then usually grouped with Istriot.
Based on mutual intelligibility, Dalby lists a dozen languages: Portuguese, Spanish, Asturian-Leonese, Aragonese, Catalan, Gascon, Provençal, Gallo-Wallon, French, Franco-Provençal, Romansh, and Ladin.
- The Langues d'oïl, or Oïl languages. These include Standard French, Picard, Walloon, Lorrain and Norman.
- The Arpitan language, also known as Franco-Provençal. It shares features of both French and the Provençal dialect of Occitan. Sometimes included in the Oïl languages.
Gallo-Romance can include:
- The Rhaeto-Romance languages. They include Romansh of Switzerland, Ladin of the Dolomites area, Friulian of Friuli. Rhaeto-Romance languages can be classified as Gallo-Romance, or as an independent branch of the Western Romance languages.
- The Occitano-Romance languages of Southern France and East Iberia, includes Occitan and Catalan. Occitano-Romance languages can be classified as Gallo-Romance, Iberian-Romance, or as an independent branch of the Western Romance languages.
- The Gallo-Italic languages. They include Piedmontese, Ligurian, Lombard, Emiliano-Romagnolo, Gallo-Italic of Sicily and Gallo-Italic of Basilicata. Gallo-Italic languages can be classified as Gallo-Romance or as Northern Italian dialects. The Venetian language is sometimes included in Gallo-Italic, but it has several characteristics that set it apart from it.
The Oïl languages, Arpitan and Rhaeto-Romance languages are sometimes called Gallo-Rhaetian.
- The West Iberian languages:
- The Castilian languages: includes Spanish and Judaeo-Spanish.
- The Galician-Portuguese languages: includes Portuguese, Galician, Fala and Uruguayan Portuñol.
- The Astur-Leonese languages: they are, from east to west, Cantabrian, central-eastern Asturian and Leonese proper. Going from north to south, they are Leonese proper, Mirandese, Extremaduran and Barranquenho.
- The Pyrenean–Mozarabic languages: includes Aragonese, and the extinct Mozarabic. Can be classified as West Iberian.
- The East Iberian language, or Catalan language: usually classified as part of Occitano-Romance, see Gallo-Romance above.
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "Italo–Western Romance". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
- David Dalby, 1999/2000, The Linguasphere register of the world's languages and speech communities. Observatoire Linguistique, Linguasphere Press. Volume 2. Oxford.
- Lorenzo Renzi, Nuova introduzione alla filologia romanza, Bologna, Il Mulino, 1994, p. 176 «I dialetti settentrionali formano un blocco abbastanza compatto con molti tratti comuni che li accostano, oltre che tra loro, qualche volta anche alla parlate cosiddette ladine e alle lingue galloromanze [...] Alcuni fenomeni morfologici innovativi sono pure abbastanza largamente comuni, come la doppia serie pronominale soggetto (non sempre in tutte le persone)[...] Ma più spesso il veneto si distacca dal gruppo, lasciando così da una parte tutti gli altri dialetti, detti gallo-italici.»