A striptease is an erotic or exotic dance in which the performer gradually undresses, either partly or completely, in a seductive and sexually suggestive manner. The person who performs a striptease is commonly known as a "stripper", "exotic dancer", or "burlesque dancer".

The origins of striptease as a performance art are disputed, and various dates and occasions have been given from ancient Babylonia to 20th-century America. The term "striptease" was first recorded in 1932. In Western countries, venues where stripteases are performed on a regular basis are now usually called strip clubs, but striptease may also be performed in venues such as pubs (especially in the United Kingdom), theaters and music halls. At times, a stripper may be hired to perform at a bachelor or bachelorette party. In addition to providing adult entertainment, stripping can be a form of sexual play between partners.

Striptease involves a slow, sensuous undressing. The stripper may prolong the undressing by wearing additional items of clothing (thus having more to remove) or putting clothes or hands in front of just-undressed body parts such as the breasts or genitalia. The emphasis is on the act of undressing along with sexually suggestive movement, rather than the state of being undressed. In the past, the performance often finished as soon as the undressing was finished, though more recently strippers may continue dancing in the nude. The costume the stripper wears before disrobing can form part of the act. In some cases, audience interaction can form part of the act, with the audience urging the stripper to remove more clothing, or the stripper approaching the audience to interact with them.

Striptease and public nudity have been subject to legal and cultural prohibitions and other aesthetic considerations and taboos. Restrictions on venues may be through venue licensing requirements and constraints and a wide variety of national and local laws. These laws vary considerably around the world, and even between different parts of the same country. H. L. Mencken is credited with coining the word ecdysiast – from "ecdysis", meaning "to molt" – in response to a request from striptease artist Georgia Sothern, for a "more dignified" way to refer to her profession. Gypsy Rose Lee, one of the most famous striptease artists of all time, approved of the term.

The origins of striptease as a performance art are disputed and various dates and occasions have been given from ancient Babylonia to 20th century America. The term "striptease" was first recorded in 1932.

There is a stripping aspect in the ancient Sumerian myth of the descent of the goddess Inanna into the Underworld (or Kur). At each of the seven gates, she removed an article of clothing or a piece of jewelry. As long as she remained in hell, the earth was barren. When she returned, fecundity abounded. Some believe this myth was embodied in the dance of the seven veils of Salome, who danced for King Herod, as mentioned in the New Testament in Matthew 14:6 and Mark 6:21-22. However, although the Bible records Salome's dance, the first mention of her removing seven veils occurs in Oscar Wilde's play Salome, in 1893.

In ancient Greece, the lawgiver Solon established several classes of prostitutes in the late 6th century BC. Among these classes of prostitutes were the auletrides: female dancers, acrobats, and musicians, noted for dancing naked in an alluring fashion in front of audiences of men. In ancient Rome, dance featuring stripping was part of the entertainments (ludi) at the Floralia, an April festival in honor of the goddess Flora. Empress Theodora, wife of 6th-century Byzantine emperor Justinian is reported by several ancient sources to have started in life as a courtesan and actress who performed in acts inspired from mythological themes and in which she disrobed "as far as the laws of the day allowed". She was famous for her striptease performance of Leda and the Swan. From these accounts, it appears that the practice was hardly exceptional nor new. It was, however, actively opposed by the Christian Church, which succeeded in obtaining statutes banning it in the following century. The degree to which these statutes were subsequently enforced is, of course, opened to question. What is certain is that no practice of the sort is reported in texts of the European Middle Ages.

An early version of striptease became popular in England at the time of the Restoration. A striptease was incorporated into the Restoration comedy The Rover, written by Aphra Behn in 1677. The stripper is a man; an English country gentleman who sensually undresses and goes to bed in a love scene. (However, the scene is played for laughs; the prostitute he thinks is going to bed with him robs him, and he ends up having to crawl out of the sewer.) The concept of striptease was also widely known, as can be seen in the reference to it in Thomas Otway's comedy The Soldier's Fortune (1681), where a character says: "Be sure they be lewd, drunken, stripping whores".