What is the ISO code for republic of korea?

ISO 3166-1 alpha-2 (2 digits) for republic of korea

The ISO 3166-1 code for republic of korea is: KR

ISO code country for
Each country, or geographical entity, or province, or department, etc. has been awarded codes defined in ISO 3166 by the International Organization for Standardization (ISO).
ISO 3166-1 alpha-2: two-letter codes are used for many applications, including top-level domains for each country.