GR
Greece
ISO 3166 Country Code
Europe
Country Codes
Alpha-2 Code (ISO 3166-1 alpha-2)
GR
Alpha-3 Code (ISO 3166-1 alpha-3)
GRC
Numeric Code (ISO 3166-1 numeric)
300
Common Usage
HTML lang attribute
<html lang="gr">
URL locale parameter
https://example.com/gr/
JavaScript/TypeScript
const country = "GR"; const countryName = "Greece";
API Response (JSON)
{
"country": "GR",
"countryName": "Greece",
"alpha3": "GRC",
"numeric": "300"
}ISO 3166 Standard
ISO 3166 is the international standard for country codes. The alpha-2 code (GR) is the most commonly used format for domain names, language tags, and internationalization. The alpha-3 code (GRC) is used in shipping, banking, and official documents. The numeric code (300) is language-independent and useful for systems with character encoding limitations.