The minority floor leader of the Senate, or simply the Senate minority floor leader, is the leader elected by the political party or coalition of parties that are not part of the majority bloc in the Senate of the Philippines. He serves as their official leader in the body and fulfills the responsibilities of a floor leader. He manages the business of the minority in the Senate. He is expected to defend the minority’s parliamentary rights, to criticize the policies and programs of the majority, and to use parliamentary tactics to defeat, pass, or amend legislation.

The Senate of the Philippines is the upper house of Congress, the bicameral legislature of the Philippines with the House of Representatives as the lower house. The Senate is composed of 24 senators who are elected at-large under plurality-at-large voting.