Saba Nayagan is a 2023 Indian Tamil-language coming-of-age romantic comedy film written and directed by C. S. Karthikeyan in his directorial debut and produced by Aravind Jayabalan, Iyyappan Gnanavel and Captain Megavanan Isaivanan under the production banners Clear Water Films INC, I Cinema and Captain Mega Entertainment.

The film features music composed by Leon James with cinematography handled by Balasubramaniem, Dinesh Purushothaman and Prabhu Rhagav and editing done by Ganesh Siva.

The film was released theatrically on 22 December 2023, where it received positive reviews from critics and became an commercial success.

Saba shares his school love story, (In 2008 - Erode) where he studied eleventh grade and had a crush on Eesha.

Later, his friends tell him that she is not in love with Ashwin, and she just talks with him casually due to her cousin's sister's request.

Gayathri gets to know that SS is not a cardiology student because he can't save a man who was unconscious.

He starts to tell them that after that incident, he joined an MBA college, and there he met Megha and how they got closer and how they became lovers.

It was revealed that Saba deliberately got arrested in order to make the sub-inspector Vishnu realise what a soulmate is.

SS asks Saba why he lied to them that he studied MBA and fell in love with a girl named Megha.

Saba replies to him that he lied to them to give them hope, as the people in the Jeep were disappointed after hearing his love failure story.

Leon James who had earlier worked with Ashok Selvan in Oh My Kadavule was signed as the music director.

[5][6] However, due to post-production and certification delays owing to Cyclone Michaung, the film was released theatrically on 22 December 2023.

Roopa Radhakrishnan of The Times of India gave 3 out of 5 stars and wrote "Ashok Selvan shines in this self-aware comedy that doesn’t let us take it too seriously.

"[9] Prashanth Vallavan of Cinema Express gave 2 out of 5 stars and wrote "Saba Nayagan offers sporadic chuckles but it mostly grates on your patience with its idea of humour.