Establishment may refer to:
- Establishment (Pakistan), Pakistan's military-civil oligarchy
- The Establishment, the dominant group or elite holding effective power or authority in a society
- The Establishment (club), an English satire club of the 1960s
- The Establishment (comics), a comic book produced by Wildstorm
- Establishment Clause of the First Amendment to the United States Constitution, forbidding Congress from establishing a religion
- Establishment of a state religion ("established church"), the endorsement of a church by a nation's government
- Freedom of establishment, the right of EU nationals to establish themselves economically in any member state of the Internal Market (European Union)