The hanbok is a traditional clothing of the Korean people. The term hanbok is primarily used by South Koreans; North Koreans refer to the clothes as chosŏn-ot. The clothes are also worn in the Korean diaspora, especially by Koreans in China.

A folk costume expresses a national identity through clothing or costume, which is usually associated with a specific region or period of time in history. It can also indicate social, marital, or religious status. If the costume is used to represent the culture or identity of a specific ethnic group, it is usually known as ethnic costume. Such costumes often come in two forms: one for everyday occasions, the other for traditional festivals and formal wear. The word "costume" in this context is sometimes considered pejorative due to the multiple senses of the word, and in such cases "clothing", "garments" or "regalia" can be substituted without offense.