It is the most spoken language in the world because it is the official language of six continents. languages French is next at just over 12%. Catalan-Valencian-Balear 4. Neapolitan-Calabrese Language. Most Studied Languages in the World languages spoken in Spain besides Spanish Several are recognized as regional languages by the Italian government, though that still doesn’t necessarily protect them from extinction. In addition, it is the most spoken of the Romance languages, and is the third most used on the internet. 4102.0 - Australian Social Trends, 1999 So in the cities, you will hear lots of other languages, especially Turkish and Italian. Second to English is Mandarin with 2.5 percent of Australia’s population speaking the language, followed by Arabic with 1.4 percent speakers; thirdly Cantonese with 1.2 percent of speakers and Italian and Vietnamese attracting 1.2 percent.