Bas

Bas may refer to:

People

 * Bas (name), a given name and a surname
 * Bas (rapper) (born 1987)

Chemistry

 * Boron arsenide (BAs), a chemical compound
 * Barium sulfide (BaS), a chemical compound

Other uses

 * bas (French for "low"), as in bas-relief sculpture
 * Tamburica, a stringed instrument sometimes known as bas
 * BAS (accounting), the Swedish accounting principles and chart of accounts