Blot-Sven (Swedish: Blot-Sven, "Sweyn the Sacrificer") was a Swedish king c. 1080, who replaced his Christian brother-in-law Inge as King of Sweden, when Inge had refused to administer the blóts (pagan sacrifices) at the Temple at Uppsala. There is no mention of Sweyn in the regnal list of the Westrogothic law, which suggests that his rule did not reach Västergötland.