Matěj Hadaš is a Czech footballer born on 25 November 2003. A Sigma Olomouc academy product, he progressed through the club's youth system and into the first team, also appearing for Sigma Olomouc B. He has represented the Czech Republic at several youth levels, including under-16, under-17, under-19, under-20 and under-21. Hadaš was part of Sigma's squad when the club won the Czech Cup in 2024-25, and the club later extended his contract as one of its homegrown players.