There are 15 visa categories and 10 types of them in Korea.

Visa Categories

Short Term Visit, Medial Treatment, Study/Language Training, Professional, Intra-Company Transfer, Journalism/Religious Affairs, Investment, International Trade, Overseas Korean, Work and Visit, Family Visitor, Dependent Family, Marriage Migrant, Trainee, Non-Professional, Diplomacy/Official Business

Visa Types

A visas
B visas
C visas
D visas
E visas
F visas
G visas
H visas
M visas