Fudbalski klub Radnički 1923 (Serbian Cyrillic: Фудбалски клуб Рaднички 1923), commonly known as Radnički Kragujevac (Serbian Cyrillic: Рaднички Крагујевац), is a professional football club from Kragujevac, Serbia and the major part of the Radnički Kragujevac Sports Society. The name Radnički means "Labourers'" in Serbian and its roots come from the relation the club had with labour movements during the first half of the 20th century.