Rajhesh Vaidhya (Tamil: ராஜேஷ் வைத்யா) (or, Vaidya), is an Indian veena player hailing from Tamil Nadu. Besides performing on stage, he has worked with various film music composers. He also acted in the movie Viswa Thulasi and in Premi, a tele-serial. Vaidhya was a winner of the 2010 Kalaimamani award for his veena playing.
Rajhesh Vaidhya has composed various albums and given many stage performances. He is the brother-in-law of S. Ve. Shekher. He was music director for the movie Vegam by S. Ve. Shekher, starring Ashwin Shekher. He has also worked with Vidyasagar, Harris Jayaraj, Bharathwaj, Deva, Devi Sri Prasad, Srikanth Deva,Isaignani Ilaiyaraaja and A. R. Rahman. He composed the music for K. Balachander's Sahana, a television series. He collaborated with Playing for Change, on the album Songs Around The World, (2008). He has performed with musicians and composers like Sir Elton John.
From a very tender age, he started his tutelage under Smt. Jeyalakshmi and continued receiving teaching of the Saraswathi Veena under Smt Rama Nambinarayanan. He also received advance training under the world-renowned carnatic veena maestro Shri Chitti Babu.