Tomas Nemcik (born 19 April 2001) is a Slovak professional footballer who currently plays for Eliteserien club Rosenborg as a defender.

Nemcik made his Fortuna Liga debut for Zilina during an away fixture against Ruzomberok on 21 October 2020. He appeared in the starting-XI and completed the entirety of the match. While Zilina was one up after the first half after a goal by Dawid Kurminowski, sosoni conceded twice in the last ten minutes following strikes by Matej Kochan and Martin Regali, losing the game 1:2.

In March 2022, Nemcik had extended his contract with Zilina until the summer of 2024.

In the end of January 2024, Nemcik was loaned out to Norwegian side Rosenborg BK, and on 26 April 2024, Rosenborg BK made the deal permanent, which means he made a contact until end of 2028.

Nemcik was first recognised in Slovak senior national team nomination in November 2022 by Francesco Calzona being listed as an alternate for two friendly fixtures against Montenegro and Marek Hamsik's retirement game against Chile. Few weeks later, in December, he was nominated for prospective players' training camp at NTC Senec.