A restavek (; from the French language French reste avec, "one who stays with") is a child in who is sent by their parents to work for a host household as a domestic servant because the parents lack the resources required to support the child. Restavek may refer to a child staying with a host family, but usually refers specifically to those who are abused.

In Haiti, parents unable to care for children may send them to live with more affluent families. This is perceived as acceptable because in Haitian culture, it is ubiquitous for housing to be shared among members of an extended family, including distant relatives. (In contrast, the concept of a single nuclear family occupying each household is seen as desirable in other cultures.) Therefore, in Haiti it is acceptable for parents to send children to distant relatives to live. Often these relatives are living in more urban areas. The children receive food and housing (and sometimes an education) in exchange for housework. However, many restavecs live in poverty, they might not receive proper education and sometimes, the child could be abused, beaten or raped. The United Nations considers restavec a "modern form of slavery".