Tihomir Kostadinov (; born 4 March 1996) is a Macedonian professional footballer who plays as a midfielder for Czech First League club Slovácko on loan from Sigma Olomouc, and the North Macedonia national team.
Born in Macedonian town of Valandovo, Kostadinov made his professional debut by playing in neighboring Serbia, with Moravac Mrà ¡tane in the 2014âÂÂ15 Serbian First League, Serbian second level.
Kostadinov made his Fortuna Liga debut for ViOn Zlaté Moravce in a 1âÂÂ2 loss against Spartak Myjava on 16 July 2016. He debuted directly in the starting line-up.
On 23 December 2021, Kostadinov was transferred to Polish club Piast Gliwice, signing a three-and-a-half-year contract. On 9 April that year, he suffered an ACL tear in his right knee during a 1âÂÂ0 home win over Górnik à ÂÃÂczna. He resumed playing in November 2023, and made his first appearance since his injury on 24 November in a goalless draw against Jagiellonia Biaà Âystok.
On 17 June 2025, Kostadinov moved on a free transfer to Czech club Sigma Olomouc.
On 12 February 2026, Kostadinov joined Slovácko on a half-year loan deal.
He made his senior debut for North Macedonia in a November 2019 European Championship qualification match against Austria.
He is part of the Macedonian group competing for UEFA Euro 2020. In this competition, he plays two group stage matches against Austria and the Netherlands.