Thee Ivan (transl. He is fire) is a 2023 Indian Tamil-language crime drama film written, produced and directed by Jayamurugan Muthusamy. The film stars Karthik and Sukanya in the main lead roles. The film marked the return of Karthik in the main lead role, after a long gap.

The film project was announced by T. M. Jayamurugan which marked his comeback return as film director and it also marked his third directorial venture after Roja Malare (1997) and Adada Enna Azhagu (2009).^[2] He also composed music for the film and also penned lyrics for the songs while also writing the screenplay and dialogues for the film.

Karthik was chosen to play the main male lead role after a long break from doing masala films. Karthik played supporting roles in films including Anegan (2015) and Thaanaa Serndha Koottam (2018) prior to this film project, as he was seen in only a handful of films here and there in the 2010s. It was reported that Karthik very much liked the script and storyline of the film, and he agreed to commit his time for the film to go on floors despite him being busy full-time with his political commitments.^[3]

The film was set in Coimbatore. The filmmakers chose Sunny Leone for an item number in a dance sequence opposite to Karthik and the shooting of the song reportedly began on 15 November 2023 in Chennai.^[4][2][5]

Maalai Malar stated that Karthik gave a befitting performance for the role of the father.^[6] Times Now rated three out of five and stated, "The director, Jayamurugan Muthusamy, skillfully crafts the film's pacing, allowing the audience to empathise with the protagonist's struggles and triumphs."^[7]