Senior legislators

Dean of the House (Canada)
In Canada, the Dean of the House is the Member of the House of Commons with the longest unbroken record of service who is not a Cabinet Minister, party Leader, House Leader or Whip.

Dean of the United States House of Representatives
The Dean of the United States House of Representatives is the longest continuously serving member of the House.

Dean of the United States Senate
The Dean of the United States Senate is an informal term used to refer to the Senator with the longest continuous service.

Father of the Australian House of Representatives
This is a List of Fathers of the Australian House of Representatives.

Father of the Australian Parliament
This is a list of Fathers of the Australian Parliament.

Father of the Australian Senate
This is a list of Fathers of the Australian Senate.

Father of the Dáil
In the Republic of Ireland, the term Father of the Dáil is an unofficial title applied to the current member of Dáil Éireann with the longest unbroken period of service, regardless of thei...

Father of the House
Father of the House is a term that has by tradition been unofficially bestowed on certain members of some national legislatures, most notably the House of Commons in the United Kingdom.

Members of the Parliament of Australia who have served for at least 30 years
This is a list of Members of the Parliament of Australia who have served for at least 30 years.

President pro tempore of the United States Senate
The President pro tempore (; or ; also President pro tem) is the second-highest-ranking official of the United States Senate.

Senior Marshal
The Senior Marshal (Marszałek senior) is an honorary post in Sejm given to one of the oldest (in age) members of the body.