1st Parliament
- 1st Bangsamoro Transition Authority Parliament
- 1st Canadian Parliament
- 1st Federal Parliament of Nepal
- 1st Irish Parliament of King Charles I
- 1st New Zealand Parliament
- 1st Parliament of Antigua and Barbuda
- 1st Parliament of Botswana
- 1st Parliament of British Columbia
- 1st Parliament of Ceylon
- 1st Parliament of Elizabeth I
- 1st Parliament of Lower Canada
- 1st Parliament of Ontario
- 1st Parliament of Queen Anne
- 1st Parliament of Singapore
- 1st Parliament of Turkey
- 1st Parliament of Upper Canada
- 1st Parliament of the Province of Canada
- 1st Parliament of the Turkish Republic of Northern Cyprus
- 1st Scottish Parliament
- First Parliament of Great Britain
- First Parliament of the United Kingdom
- First Protectorate Parliament
- List of members of the 1st Parliament of Zimbabwe
- Members of the Dewan Rakyat, 1st Malayan Parliament