Annaiyin Aanai () is a 1958 Indian Tamil-language film directed by Ch. Narayana Murthy, starring Sivaji Ganesan and Savitri. The film was released on 4 July 1958, and won the National Film Award for Best Feature Film in Tamil.
Annaiyin Aanai was produced by A. M. M. Issmayil under Paragon Pictures. Ch. Narayana Murthy directed the film besides writing the story and screenplay, while Murasoli Maran wrote the dialogues. C. Raghavan was the art director, M. A. Perumal was the editor, B. Hiralal was the choreographer, and J. G. Vijayam was the cinematographer. One scene in the film required Savitri's character to become emotional, grab Ganesan's character by the shirt and shake him excessively. Savitri tore Ganesan's shirt and clawed his chest, resulting in him bleeding heavily. Afterwards when he pretended to hit her with a towel, she controlled her emotions and stopped.
The music composed by S. M. Subbaiah Naidu. The song "Neeyegadhi Eswari" is set in Charukesi raga.