Ayiroor Sadasivan (1939 - 9 April 2015) was an Indian playback singer who worked mainly in Malayalam cinema.

Ayiroor Sadasivan was born in Kerala and learned music from an early age.

Sadasivan sang for many Malayalam films and collaborated with , G. Devarajan, Vayalar, Yusufali Kecheri, Sreekumaran Thampi, V. Dakshinamurthy, P. Bhaskaran, Mankombu, K.J.

Yesudas and P.

[1] Songs:- Shree valsam maaril charthiya, Amme amme aviduthe munnil, Monchathippene nin chund, Bhagavan, Janmadinam janmadinam, Shankunthale, Kasthoori gandhikal, Pinju hridayam, Kochu raama kaninkaali, Ithile pokum kaattinu, Ankathattukal, Udaya soubhagya thaarakayo, Albums Tharangini-KJ yesudas, Thoomanju:-Devotional Album Song-Iniyum nee karayaathirikkan Lyrics-ST Cherian Music-Ayiroor Sadasivan Sadasivan died in a car accident on 9 April 2015 at the age of 78.