The leader of the opposition in the Tamil Nadu Legislative Assembly is an elected member of the Legislative Assembly who leads the official opposition party in the Tamil Nadu Legislative Assembly. The leader of the opposition serves as the legislative leader for the largest political party in the assembly that is not part of the government, provided that this political party holds at least 10% of the seats.
List
;Key • Resigned • Returned to office after a previous non-consecutive term ;Timeline ==Statistics==
Statistics
;List of leaders of the opposition by length of term ;List by party ;Parties by total duration (in days) of holding Leader of the Opposition's Office ==List of deputy leaders of the opposition==
List of deputy leaders of the opposition
;Key • Resigned • Returned to office after a previous non-consecutive term ==See also==