Košarkaški klub Radnički KG 06 (Serbian Cyrillic: КК Раднички КГ 06), commonly referred to as Radnički KG 06, was a men's professional basketball club based in Kragujevac, Serbia.

The club was founded in 2004 by the merger of two local clubs (Radnički and Zastava), and was named KK Radnički Zastava.

[1] In 2006, the club switched its name to just KK Radnički, and competed under the sponsorship name Radnički 034 Group.

In the summer of 2006, the club bought the Basketball League of Serbia license from Atlas.

Radnički KG 06 played in the Balkan International Basketball League during the 2008–09 season.