Surname 기수 (Gisu 
, 기수 , Ki-Soo 
) , all around the world, is a rare cognomen. The family name 기수 is characteristic of Tanzania, where it is a rare surname, Australia, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Tanzania, Indonesia, and China. Predominantly, 기수 is the forename as well as the last name.