A beauty pageant is a competition in which the contestants are judged and ranked based on various physical and mental attributes. Per its name, beauty pageants traditionally focus on judging the contestants' physical attractiveness, sometimes solely so, but most modern beauty pageants have since expanded to also judge contestants based on "inner beauty"—their individual traits and characteristics, including personality, intelligence, aptitude, moral character, and charity. Though typically perceived as a female-oriented competition, male beauty pageants also exist, as do child beauty pageants for youth.
The term beauty pageant refers originally to the Big Four beauty pageants: Miss Universe, Miss World, Miss International, and Miss Earth. Thousands of beauty contests are held annually, but the Big Four are considered the most prestigious, and are widely covered and broadcast by news media. The earliest formal beauty pageants were held in the 19th century, although similar informal events date back to at least the post-classical period. Modern beauty pageants were first established in the early 20th century, with their popularity later boosted by the establishment of international pageants in the mid-20th century. Reforms of pageants in the 21st century marked a shift from primarily focusing on physical appearance to placing more weight on other characteristics.