Sanjna is an Indian film actress who appears in Tamil language various films and movies. She made her debut in the critically acclaimed 2009 film Renigunta.

She made her début in the critically acclaimed 2009 film Renigunta, directed by Paneerselvam. A critic from The Hindu noted that "an understated yet powerful performance comes from Sanjana Singh, who plays the role of a sex worker forced into the profession by her husband. Her spontaneity and perfection in lip sync for the Telugu-influenced-Tamil accent shows that here's one Mumbai import, who goes beyond glamour and is worth looking out for.