Prachi Desai (born 12 September 1988) is an Indian film and TV actress. She is best known for her role as Bani Walia in the Hindi television drama Kasamh Se which aired on Zee TV. Prachi is the endorser, spokesperson, brand ambassador and the face of Neutrogena products in India.

Prachi was born in Gujarat, India. She studied in St Joseph Convent, Panchgani and completed her schooling till 9th grade in Surat. Then she went to Pune for higher studies. She studied in Pune in Sinhagad College. Her first film wasRock On!!, where she played the wife of Farhan Akhtar. Prachi had to leave her very successful role of "Bani" in Kasam Se to act in Rock On. Her next movie is Life Partner. She is currently working on Once Upon a Time in Mumbai, a film to be released in mid 2010. It stars Ajay Devgan, Emraan Hashmi and Kangana Ranaut.

Acting was her passion since childhood - her father and uncle had done various Gujarati plays - but she started with a short modelling workshop. She went to Pune for higher studies and had almost finished her junior college when her pictures were sent to Balaji Telefilms and she got a call for an audition for Kasamh Se. She had just turned 17 when her career began on Kasamh Se and left her studies for a while. She is now continuing with her correspondence course. She has also starred in her first movie Rock On !! which was released on 29 August 2008 and Farhan Akhtar as her co-star.

Kasamh Se is the serial that Prachi Desai starred in and got her fame on Zee TV. She has captured many a hearts with this program acting as innocent but strong willed Bani Dixit (now Bani Walia). Prachi left Kasamh Se on 15 April 2008 and was replaced by Gurdeep Kohli after being burnt and drowned in episode 564. Kasamh Se ended 12 March 2009. In the last episode, Prachi Desai made a special appearance as the former Bani. Kasautii Zindagii Kay was aired on Star Plus which was a TV serial in which Prachi did a cameo for 2 days as a school student in Prerna's school. Prachi Desai was her character name in Kasauti Zindagi Ki. In the serial she works as a student who tries to go with her lover far away without the permission of her parents and was caught by the serial's heroine who complains this to her and her lover's parents.

Prachi then entered Jhalak Dikhhla Jaa, the Indian version of BBC's Strictly Come Dancing, on 7 September 2007 with choreographer Deepak Singh. Prachi impressed the judges every week, but was ultimately eliminated on 10 November 2007. However, she entered the contest again via the Wildcard entry on 23 November 2007. Prachi then landed a spot in the Grand Finale of the dance show on 15 December 2007 and won the 1st place against her other contestants. Prachi Desai was awarded the Dancing star of Jhalak Dikhhla Jaa 2. However it has been alleged that she was made to return as a wild card entry in spite of her elimination due to a direct intervention from her close personal friend Ekta Kapoor which compelled the producers of the show to change the international format of Jhalak Dikhhla Jaa.