Vaazhai (Tamil pronunciation: [ʋaːɻaɪ] transl. Banana) is a 2024 Indian Tamil-language children's drama film written, co-produced and directed by Mari Selvaraj. It is produced by Disney+ Hotstar, Navvi Studios and Farmer’s Master Plan Production. The film stars debutantes Ponvel M., Raghul R., Kalaiyarasan and Nikhila Vimal in the lead roles, alongside J. Satish Kumar, Dhivya Duraisamy, Karnan Janaki and Nivedita Rajappan. Partially based on Selvaraj's life, in the film, Sivanaindhan works at a banana plantation while going to school; however, he hates working there.

The film was officially announced in November 2022 under the tentative title Production No.1, as it is the first production of Navvi Studios, and the official title was announced few days later. Principal photography commenced the same month. It was shot for the most part in Thoothukudi and Tirunelveli, and wrapped by mid-January 2023. The film has music composed by Santhosh Narayanan, cinematography handled by Theni Eswar and editing by Suriya Pradhaman.

Vaazhai was released in theatres worldwide on 23 August 2024. Upon release, it received critical acclaim praising Mari Selvaraj's direction and the performances of the lead cast.