The 2012-13 V-League season was the 9th season of the V-League, the highest professional volleyball league in South Korea. The season started on 2 November 2012 and finished on 31 March 2013. Daejeon Samsung Bluefangs were the defending champions in the men's league and Daejeon KGC the defending female champions.
Match won 3–0 or 3–1: 3 match points for the winner, 0 match points for the loser
Match won 3–2: 2 match points for the winner, 1 match point for the loser