WordPress by default display in US English but WordPress has the built-in capability to be used in any language.

There are 2  ways to install wordpress in your language

• Follow the instructions listed here for your language
• Manually installation of language files to WordPress site
• Download the .mo language file for your language
• For complete lists of country codes click here
• For complete lists of language codes click here
• Open your wp-config.php file & find

  define ('WPLANG', '');

• Edit according to .mo file. For example Hindi spoken in India

  define ('WPLANG', 'hi_IN');