Kaloyan "Kay" Kalinov Kostadinov (Bulgarian: Калоян Калинов Костадинов; born 18 July 2002) is a Bulgarian football midfielder who plays for Stabæk.
Coming through the youth system of Sandnes Ulf, he made his senior debut in the 2019 Norwegian Football Cup against Vard.
This year he also made his debut for a Norwegian youth national team.
Albeit the transfer would happen in August 2020,[2] he did not play any Sandnes Ulf games in 2020 and instead made his Stabæk debut in September 2020 against Odd.
This biographical article related to a Norwegian association football midfielder is a stub.