C. N. Annadurai, Indian educator and politician, 7th Chief Minister of Tamil Nadu (died 1969)

Conjeevaram Natarajan Annadurai, also known as Perarignar, was an Indian politician who was the founder and first general-secretary of the Dravida Munnetra Kazhagam (DMK). He served as the fourth and last chief minister of Madras State from 1967 until 1969, and then as the first chief minister of Tamil Nadu for 20 days before his death in office. He was the first member of a Dravidian party to hold either post.

The chief minister of Tamil Nadu is the chief executive of the Indian state of Tamil Nadu. In accordance with the Constitution of India, the governor is a state's de jure head, but de facto executive authority rests with the chief minister. Following elections to the Tamil Nadu Legislative Assembly, the state's governor usually invites the party with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given that he has the confidence of the assembly, the chief minister's term is for five years and is subject to no term limits.