Azai Sukemasa (浅井 亮政 Azai Sukemasa) (1491 - January 21, 1546) was the father of Azai Hisamasa and built Odani Castle from where Azai clan would rule.

Sukemasa used to be a retainer under Kyogoku clan but he gradually increased his power under an internal struggle in the Kyogoku clan. Eventually, he managed to become daimyo but came to be engaged in a perpetual struggle against Rokkaku Sadayori . He was once completely overrun and forced to retreat into Echizen but with the help of Asakura clan , managed to maintain the independece. While this alliance would later prove to be a curse to the Azai clan, it was essential to the clan's survival at this time.