The 2012–13 was the 26th season of División de Honor, the top flight women's water polo in Spain.
Upon completion regular season, top four teams played in the championship playoff.
The championship playoff began a week later with semifinals, and the final was played in late May.
Sabadell Astralpool was the defending champion and successfully defended its title of the previous season after defeating CN Mataró El Tot 2–0 in the championship final.
[1] Source:[2] Sabadell Astralpool won series 2–0 and advanced to Semifinals Mataró El Tot won series 2–0 and advanced to Semifinals Sabadell Astralpool won Championship final series 2–0.