Nalla Thambi (/nəlləθəmbi/) is a 1985 Indian Tamil-language film, directed by S. P. Muthuraman and produced by AVM Productions, starring Karthik and Radha.

On returning home, he discovers that all the young women in the city are eagerly waiting in his house, for him to marry one among them.

However, though all the girls fail to impress Raja, Seetha manages to win the heart of his father, Chandrashekhar, who promises her marriage to him.

Raja runs into Chitra, a free-spirited girl who is being pressured by her three freakish "suitor" relatives to marry one among them.

She requests Raja to act as her boyfriend so that her quirky suitors will back off in their pointless endeavor.