Marek Ujlaky (born 3 December 2003) is a Slovak professional footballer who plays for MFK Skalica on loan from Spartak Trnava as a centre back.
Ujlaky signed his first professional contract with Spartak Trnava in May 2021.
He made his Fortuna Liga debut for Spartak in a home fixture at à  tadión Antona Malatinského on 10 April 2021 against ViOn Zlaté Moravce. He came on in the 88th minute to replace team captain Ján Vlasko with the score set at 2âÂÂ0 following a first-half goal by Vlasko and a second-half own goal by Matej Moà ¡ko. Ujlaky was immediately given the captain's armband. While on pitch, Saymon Cabral set the final score at 3-0 for Spartak.
In June 2022, Ujlaky signed his first professional contract with Spartak along with Patrick Karhan, whose father Miroslav played and managed Spartak, and collected over 100 caps for Slovakia. Both players were to succeed their fathers in their careers and serve as a motivation for other Academy players of Spartak Trnava, according to club President Peter Macho.
Ujlaky was injured on August 27, 2025 in a Slovnaft Cup match against AC Nitra. From then on, he had been on a forced break and only returned to the field at the beginning of the 2026 winter preparations against Dynamo Malà ¾enice.
On 14 February 2026, after requesting a transfer, it was announced that Ujlaky would be joining fellow league outfit MFK Skalica on a half-year loan. He made his debut for Roman HudecâÂÂs side the same day, coming on off the bench in the 70th minute for TomÃ¡à ¡ Smejkal in a 2âÂÂ1 win against MFK ZemplÃÂn Michalovce.
Ujlaky made his National debut for Slovakia U19 in a 1âÂÂ0 loss to Italy U19. He was at the 2023 FIFA U-20 World Cup with the U20 team, where he would help the team advance from the group stage after a single win over Fiji. However, they subsequently lost to Colombia 5âÂÂ1 in the knockout stage.
On 21 May 2025, Ujlaky was picked to be a part of the squad for Slovakia U21 ahead of the UEFA European Under-21 Championship held in Slovakia. He would not make an appearance and would only feature on the bench in all 3 group stage games.
Ujlaky is the son of Marek Ujlaky, a former Slovak international who played almost 400 league fixtures for Spartak Trnava.
Spartak Trnava