Issachar/Yissachar (Hebrew: יִשָּׂשכָר, Modern Yissakhar, Tiberian Yiśśāḵār; "reward; recompense") was, according to the Book of Exodus, a son of Jacob and Leah (the fifth son of Leah, and ninth son of Jacob), and the founder of the Israelite Tribe of Issachar. However, some Biblical scholars view this as an eponymous metaphor providing an aetiology of the connectedness of the tribe to others in the Israelite confederation.
The text of the Torah gives two different etymologies for the name of Issachar, which some textual scholars attribute to different sources - one to the Yahwist and the other to the Elohist. The first derives it from ish sakar, meaning man of hire, in reference to Leah's hire of Jacob's sexual favours for the price of some mandrakes. The second derives it from yesh sakar, meaning there is a reward, in reference to Leah's opinion that the birth of Issachar was a divine reward for giving her handmaid Zilpah to Jacob as a concubine. Scholars suspect the former explanation to be the more likely name for a tribe, though some scholars have proposed a third etymology - that it derives from ish Sokar, meaning man of Sokar, in reference to the tribe originally worshipping Sokar, an Egyptian deity.