Neela Vaanam () is a 1965 Indian Tamil-language film, directed by P. Madhavan and produced by Varathan. The film stars Sivaji Ganesan, Devika and Rajasri. It was released on 10 December 1965.
Babu, a Bachelor of Arts graduate working as a ticket taker at Shanthi Theatre, often hitchhikes to work. During one such ride, he meets Vimala, and the two gradually fall in love. Babu tells her he will marry only after securing a better job. VimalaâÂÂs uncle Varatharajan later comes to approve of their relationship.
Meanwhile, Somanathan, a wealthy paper mill owner, seeks a groom for his daughter Gowri. By chance, Gowri meets Babu and offers him a job at her fatherâÂÂs mill. After Babu is publicly humiliated at GowriâÂÂs birthday party over a missing necklace, Somanathan intervenes, apologizes, and formally employs him.
Babu introduces Vimala to his family, but events take a tragic turn when Gowri is diagnosed with incurable uterine cancer, a fact her parents conceal from her. After a proposed marriage alliance for Gowri collapses, she grows close to Babu and proposes to him. Aware of his daughterâÂÂs limited time, Somanathan pleads with Babu to marry her, and Babu reluctantly agrees.
After the marriage, Vimala believes Babu abandoned her for wealth. She later joins the paper mill as GowriâÂÂs assistant, creating tension. To protect Gowri from despair, Babu and Somanathan pretend she is pregnant, allowing her to live happily in her final months. Babu secretly searches for a cure but fails.
Eventually, Gowri learns both of her illness and BabuâÂÂs past relationship with Vimala. Accepting her fate, she urges Babu to marry Vimala and dies in his arms. Devastated, Babu leaves the house carrying a doll Gowri cherished as their child. Vimala later finds him and pleads her understanding, but Babu silently walks away.
The music was composed by M. S. Viswanathan and the lyrics were penned by Kannadasan. The song "Sollada Vaai Thirandhu" is set in Senjurutti raga.
Neela Vaanam was released on 10 December 1965, and distributed by Sivaji Films. T. M. Ramachandran of Sport and Pastime called it a "poor film" and criticised Madhavan's direction as "naive". He also noted "There is nothing much to write home about K. Balachander's screenplay and dialogue" but called Viswanathan's music "pleasing". Kalki appreciated Balachander's screenplay and dialogue but criticised the songs.