Application locale
Supported on: Microsoft Windows 7 or later
Registry
HKLM
Software\Policies\Google\Chrome\Recommended HKCU
Software\Policies\Google\Chrome\Recommended Options
ApplicationLocaleValue text Description
Setting the policy specifies the locale Google Chrome uses. Turning it off or leaving it unset means the locale will be the first valid locale from: 1) The user specified locale (if configured). 2) The system locale. 3) The fallback locale (en-US). Example value: en