A poorhouse or workhouse is a government-run facility to support and provide housing for the dependent or needy.

In Britain and Ireland, a workhouse was an institution where those unable to support themselves financially were offered accommodation and employment. In Scotland, they were usually known as poorhouses. The earliest known use of the term workhouse is from 1631, in an account by the mayor of Abingdon reporting that "we have erected wthn [sic] our borough a workhouse to set poorer people to work".