S. A. Rajkumar is an Indian composer and lyricist. He has made music for all South Indian language films in Tamil, Malayalam, Telugu, and Kannada.

Rajkumar's father was a vocalist performing in stage shows conducted by popular music directors such as Ilayaraja, Gangai Amaren, Deva among others. Rajkumar admired his father's musical career and developed an interest in music. It was his mother who encouraged his father to make him join music classes. Rajkumar underwent classical music training under the guidance of Subbaiah Bhagavathar for 3 years.^[1][2]

After completion of his music training, Rajkumar started to organize musical shows on his own and was in search for film opportunities. Come 1987 and director duo Robert–Rajasekar gave him his first major breakthrough by signing him as the music composer for their film Chinna Poove Mella Pesu.^[3] Since then, Rajkumar has composed music for over hundred films in Tamil, Malayalam, Telugu and Kannada language films. His compositions for the films such as Pudhu Vasantham (1990), Shruthi (1990), Poove Unakkaga (1996), Surya Vamsam (1997), Aval Varuvala (1998), Unnidathil Ennai Koduthen (1998), Thulladha Manamum Thullum (1999), Raja (1999), Vaanathaippola (2000), Vasantam (2000) and Priyamaana Thozhi (2003) have all been blockbuster musical hits.

• 1990 – Filmfare Award for Best Music Director – Tamil – Pudhu Vasantham^[4]
• 1990 – Filmfare Award for Best Music Director – Kannada – Shruthi
• 1999 – Filmfare Award for Best Music Director – Telugu – Raja ^[5]
• 1997 – Tamil Nadu State Film Award for Best Music Director – Suryavamsam^[6]