Stefan Simič

Early career

Simić entered Slavia Prague's youth ranks at the age of six. He rose through the ranks and became the youngest player to sign a professional contract with the club, aged 15 years and 11 months. He played his first minutes for the senior side on 12 February 2011 in a friendly match against Croatian side Hajduk Split, as a part of the latter's centenary celebration, in honour of his mother's death. He left the club before making his debut in an official match, joining the youth ranks of Genoa in Italy in January 2012. The transfer reportedly cost 12 million Kč.

AC Milan

Simić played for a year and a half for Genoa Primavera side before moving to AC Milan. He was an integral part of the youth team that won the 2014 Torneo di Viareggio In the summer of 2014, Simić joined the Serie B side Varese on loan and played 17 games for the team during the season. After missing out on the first half of the 2015–16 season due to injury to his right fibula, Simić was supposed to join Hajduk Split in a six-month loan deal in January 2016. While he was already in Split to sign, he was recalled to Milan due to the injury of his teammate Philippe Mexès. For the 2016–17 season, Simić was loaned out to Belgian First Division side Royal Mouscron-Péruwelz. On 31 August 2017, he was loaned out again, this time to Serie A club Crotone. On 24 January 2019, Simić joined Serie A club Frosinone on loan until 30 June.

Hajduk Split

On 28 June 2019, Simić joined…

Simić chose to represent Czech Republic while having the possibility to play for Croatia, Serbia and Bosnia and Herzegovina, from which his parents came from, his father's ethnicity and whose passports he holds as well. Simić accumulated 40 caps and 1 goal between 2011 and 2014 for the Czech youth national teams, playing at U16, U17, U19, U20 and U21 levels. He debuted for Czech national football team on 11 November 2017 in a 1–0 victory against Qatar.

Club

As of match played 25 June 2025

Simić is of Bosnian Serb and Croatian descent. His father Radoje hails from Prijedor, Bosnia and Herzegovina and his mother Suzana hails from Zagreb, Croatia. His family fled to Prague during the Croatian War of Independence before his birth. He considers himself a fan of Hajduk Split and Slavia Prague.