List of leaders of the house in the Tamil Nadu Legislative Assembly

Leader of the House in the Tamil Nadu Legislative Assembly
Tamiḻnāṭu Caṭṭamaṉṟa Avaittalaivar
Emblem of Tamil Nadu
Incumbent Duraimurugan since 11 May 2021
Tamil Nadu Legislative Assembly
Nominator	Members of the Ruling party in the Tamil Nadu Legislative Assembly
Appointer	Speaker of the Tamil Nadu Legislative Assembly
Inaugural holder	C. Subramaniam
Formation	3 May 1952; 72 years ago (1952-05-03)
Website	www.assembly.tn.gov.in

The Leader of the House in the Tamil Nadu Legislative Assembly is an elected Member of Legislative Assembly who leads the ruling party in the Tamil Nadu Legislative Assembly. The Leader of the House in the Tamil Nadu Legislative Assembly is the chairperson of the legislative assembly's largest political party, which is part of the government of Tamil Nadu. A minister will be appointed by the government as the Leader of the House. Rules of Procedure provide that the Speaker of the legislative assembly shall consult the Leader of the House before allocating time for discussion of certain items of business. The arrangement of government business is his ultimate responsibility. His foremost duty is to assist the Speaker in the conduct of business.

Since 1952, the Tamil Nadu Legislative Assembly has had 12 leaders of the house. Former Minister of Defence of the Republic of India C. Subramaniam of the Indian National Congress was the inaugural holder of the office of leader of the house as Madras State Legislative Assembly. Former acting chief minister of Tamil Nadu V. R. Nedunchezhiyan, the longest-serving leader of the house, was chosen from both Dravidian parties, the Dravida Munnetra Kazhagam and the All India Anna Dravida Munnetra Kazhagam, which ruled Tamil Nadu for several periods of time. K. Anbazhagan from the Dravida Munnetra Kazhagam has the second longest tenure. R. M. Veerappan has the shortest tenure (only 23 days). M. Bhakthavatsalam served as the leader of house before serving as chief minister.M. Karunanidhi, and O. Panneerselvam are the former chief ministers of Tamil Nadu who also were designated as leaders of the house in the Tamil Nadu Legislative Assembly.

The current incumbent has been Duraimurugan of the Dravida Munnetra Kazhagam since 11 May 2021.^[1]