Date Tanemune (伊達 稙宗?, 1488 – July 16, 1565) was a Japanese samurai warrior and clan leader during the Sengoku period.
He was the son of Date Hisamune.
At the death of his father, he became daimyo of Mutsu Province.
In 1536, he promulgated the Date provincial code (Jinkaishū).
Tanemune's attempt to have Uesugi Sadazane, the childless head of the Uesugi, adopt Sanemoto and make him his heir, sparked a civil war within the Date known as the Tenbun War (天文の乱) from 1542 to 1548 which resulted in Tanemune's replacement as clan head by his eldest son, Harumune.