Slezský FC Opava is a professional football club based in Opava, Czech Republic. The club plays in the Czech National Football League, the second of Czech football after being relegated from the Czech First League at the end of the 2020–21 season.
The club was in the Czech First League at the top tier of Czech football from 1995 to 2000, getting relegated in 2000 but returning to the top flight the following season in 2001. After another relegation they returned again in 2003 and had a two-year spell in the top division, but internal issues led to a slow decline of the club and relegation to the regional division. The club celebrated a return to the Second Division in 2011, but after just two seasons, they were relegated back to the Moravian–Silesian Football League (MSFL) in 2013. The club won promotion back into the second level of football in their first season in the MSFL. They won the Czech National Football League in 2018, securing promotion to the top flight. However they were relegated to the National League again in 2021.
On 9 January 2024, Slovak company A.I.K. spol. s.r.o. bought the team from the city of Opava. Transaction was fully completed on 18 March 2024, Andrej Krajíček become the new owner.