Kadambari Devi (5 July 1859 – 21 April 1884) was the wife of Jyotirindranath Tagore and daughter-in-law of Debendranath Tagore. She was ten years younger than her husband, whom she married on 5 July 1868 (২৫শে আষাঢ়, ১২৭৫ বঙ্গাব্দ), at the age of nine. Her husband arranged for her to be educated. She was nearly the same age as her brother-in-law Rabindranath Tagore, being only two years older than him. She inspired young Rabindranath in composing many of his poems with her creative feedback and comments. She was also a good friend and playmate. She was one of the women who played a very important part in his life. Her relationship with Tagore was controversial and had elements of tragedy. For reasons that are not known, she committed suicide on 21 April 1884, four months after Rabindranath Tagore married. The Tagore family always remained silent about her suicide. Rumours of family problems having led to her suicide have circulated. Allegedly, she wrote a letter before her death revealing her husband's affair but again, there was no one to prove. After Kadambari Devi's death, Rabindranath was completely broken. For a long time after her death, he wrote many songs and poems in her memory.

In popular culture