OSTRAVAR Aréna (previously ČEZ Aréna, due to sponsorship reasons) is an indoor arena used mainly for ice hockey matches, in Vítkovice, Ostrava, Czech Republic.

The arena hosts home games of ice hockey club HC Vítkovice.

The capacity of the arena is 9,779, plus 16 skyboxes, making it the fourth-largest hockey venue in the Czech Republic.

In ice hockey, it was the main venue for the 1994 and 2020 IIHF World Junior Championships.

The arena was the secondary venue for the 2004, 2015 Men's World Ice Hockey Championships, and 2024 Men's Ice Hockey World Championships with Prague's O2 Arena.