How can I change Django admin language?

In your settings.py just add 'django.middleware.locale.LocaleMiddleware' to your MIDDLEWARE_CLASSES setting, making sure it appears after 'django.contrib.sessions.middleware.SessionMiddleware'.

You can create /en/admin, /fr/admin/ and so on using i18n_patterns:

urlpatterns += i18n_patterns(
    url(r'^admin/', include(admin.site.urls)),
)

(For Django <= 1.7, you must specify a prefix, use i18n_patterns('', ... ))