If you want to keep the Dashboard in “English” but at the same time to display the website in another language for the visitors? If yes then this blog post is useful for you.
# Login to the wp-admin WordPress Dashboard
# Click Settings in the navigation menu then click the General link
# Click the drop-down menu next to “Site Language” and choose your preferred language
# Click the “Save” Changes button.
Now you will see the website displayed in the language you selected.