Zoltán Kósz (born 26 November 1967 in Budapest) is a Hungarian water polo player, who played on the gold medal squad at the 2000 Summer Olympics.

Kosz also competed at the 1996 Summer Olympics, where the Hungarian team placed 4th.

He is nicknamed Cheeta, and made his debut for the national team in 1986.

228 present in the national team of Hungary.

European competitions: Domestic competitions: