Kaloyan Kostadinov
Norwegian footballer

Kaloyan "Kay" Kalinov Kostadinov (Bulgarian: Калоян Калинов Костадинов; born 18 July 2002) is a Norwegian footballer who plays as a midfielder for Sandnes Ulf.
Career
Coming through the youth system of Sandnes Ulf, he made his senior debut in the 2019 Norwegian Football Cup against Vard. He made his league debut in July 2019 against Notodden. This year he also made his debut for a Norwegian youth national team. At the end of the 2019–20 winter transfer window he agreed to a transfer to first-tier Stabæk. Albeit the transfer would happen in August 2020, he did not play any Sandnes Ulf games in 2020 and instead made his Stabæk debut in September 2020 against Odd.
On 12 September 2025, he returned to play for Sandnes Ulf on a contract for the rest of the year.
International career
Kostadinov was born in Bulgaria to Bulgarian parents but moved to Norway in 2011, which makes him eligible for both Norway and Bulgaria national teams. He represented Norway from U17 to U21 level.
This brief starts where responsible research should: with the source description of “Kaloyan Kostadinov” as norwegian footballer. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the people & ideas register because the source frames it as norwegian footballer. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Jul 24, 2026. The linked authority identifier is Q104173821. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2002, 2019, 2020 and 2025.
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This entry incorporates text from “Kaloyan Kostadinov” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.