To select your preferred language for Opera and for content in webpages, go to.
Note that Opera is not necessarily available in all languages on the list, nor will most websites serve content based on your language setting. Should no Opera translation exist in your preferred language, the software will remain in US English, while some websites may serve you content in the selected language.
If you have downloaded an Opera language file separately, go to the "Details" dialog to apply it.
Language in the opera.com website
If you are viewing our website www.opera.com, you can change the language for the site by using the selector at the bottom, left of the screen.