O'Neill is the longest-serving Speaker without a break (1977 through 1987).

He served as Speaker of the House from 1977 until his retirement in 1987, making him the only Speaker to serve for five complete consecutive Congresses, and the second longest-serving Speaker in U.S. history after Sam Rayburn.

He is tied with Liston B. Ramsey as longest-serving Speaker in state history.

He was the longest-serving Speaker of the Dewan Rakyat, the lower house of the Malaysian Parliament.

Lawrence M. Hall (May 20, 1908 in St. Cloud, Minnesota - February 28, 1973) was a Minnesota Democratic politician and is the longest-serving Speaker of the Minnesota House of Representatives.

Rayburn was the longest-serving Speaker in history, holding office from 1940 to 1947, 1949 to 1953, and 1955 to 1961.

He is the longest-serving Republican Speaker in history.

On June 1, 2006, Hastert became the longest-serving Republican Speaker of the House in history, surpassing the record previously held by fellow Illinoisan Joe Cannon, who held the post from November 1903 to March 1911.

Sir John "Jack" McLeay, KCMG, MM (19 November 1893-22 June 1982) was an Australian politician and the longest-serving Speaker of the Australian House of Representatives.

In 1999, Republican Dennis Hastert of Illinois became Speaker of the House, a position he would hold until 2007, making him the longest-serving Republican Speaker of the House.