KK Crvena zvezda in the National Leagues shows records and statistics of Serbian men's professional basketball club Crvena zvezda in the domestic competition system. The Crvena zvezda squads have won 21 National League championships, including 10-in-a-row and current 6-in-a-row sequences. They have played three different National Leagues since 1945, including Yugoslav First Federal League (1945–1992), First League of Serbia and Montenegro (1992–2006) and Serbian League (2006 onward).