What do the country initials 'JP' stand for?

The country initials "JP" stand for Japan. These letters are derived from the country's name in English, where "J" represents the first letter and "P" comes from the second syllable in "pan," which is influenced by the Portuguese Word for Japan, "Japão." In international contexts, such as vehicle registration codes and internet domain names, "JP" is commonly used to denote Japan.