煞买（希伯来文：שמאי‎，约公元前50年－约30年）是1世纪的犹太教学者，煞买学派的创始人。他从严格的角度理解犹太教律法，曾欲使其幼年儿子在赎罪日禁食，经朋友劝阻才作罢。

Shammai (50 BCE – 30 CE, Hebrew: שמאי) was a Jewish scholar of the 1st century, and an important figure in Judaism's core work of rabbinic literature, the Mishnah.

Shammai was the most eminent contemporary and the halakhic opponent of Hillel, and is almost invariably mentioned along with him.