Acharonim (; ; sing. אחרון,
Aḥaron; lit. "last ones") is a term used in
Jewish law and history, to signify the leading
rabbis and
poskim (Jewish legal decisors) living from roughly the 16th century to the present, and more specifically since the writing of the
Shulkhan Arukh (Hebrew: שׁוּלחָן עָרוּך, "Set Table", a code of Jewish law) in 1563 CE.