Sebastian Cosmin Cozmâncă (born February 2, 1992) is a Romanian Muay Thai kickboxer who competes in the heavyweight division.

[3] In October 2022, Cozmâncă was ranked the #8 light-heavyweight kickboxer in the world by Beyond Kick.

[4][5] In 2015, Cozmâncă was signed by the Romanian Superkombat Fighting Championship promotion.

In 2018, he won the Colosseum Tournament World -95 kg/209 lb Championship,[7] holding title before vacating it to sign with Dynamite Fighting Show.

In the same year, at Dynamite Fighting Show 2, he defeated Valentin Bordianu for the Dynamite Fighting Show Heavyweight Championship via second-round knockout.