Show business, sometimes shortened to show biz or showbiz (since 1945), is a vernacular term for all aspects of entertainment, especially light entertainment. The word applies to all aspects of the entertainment industry from the business side (including managers, agents, producers, and distributors) to the creative element (including artists, performers, writers, musicians, and technicians). The term was in common usage throughout the 20th century, but the first known use in print dates from 1850. At that time and for several decades it always included an initial the. By the latter part of the century, it had acquired a slightly arcane quality associated with the era of variety, but the term is still in active use.

Show business, or Showbiz, is a vernacular term for the business of entertainment.