Roseller Tarroza Lim was a Filipino politician who served as a member of the Senate and House of Representatives from 1949 to 1963. He also served as Court of Appeals Justice from his appointment in 1973 until his death. Lim was known as the "Great Filibuster," after he filibustered for more than 18 hours in an attempt to prevent the election of Ferdinand Marcos as President of the Senate.

A filibuster is a political procedure in which one or more members of a legislative body prolong debate on proposed legislation so as to delay or entirely prevent a decision. It is sometimes referred to as "talking a bill to death" or "talking out a bill", and is characterized as a form of obstruction in a legislature or other decision-making body.