Udayabhanu (6 June 1936 - 5 January 2014) was an Indian playback singer andmusic director, mainly in Malayalam films. In 2009, he was awarded the Padma Shri, India's fourth highest civilian honour.
Udayabhanu recorded his first film song Enthinithra panchasara for the film Nairu Pidicha Pulivalu in 1958. In his career, he sang more than 50 songs. The most notable songs are Kananachayayil aadumeykkan (Ramanan), Anuraga nadakathin (Ninamaninja Kalpadukal), Ponvalayillenkilum (Kutti Kuppayam), Thamara Thumbi Vava (Puthiya Akasam Puthiya Bhoomi), Vellinakshathrame ninne nokki (Ramanan), Chudukanneeralen (Laila Majnu), Tharame tharame (Laila Majnu), Vadaruthee malarini (Sathyabhama), Pennale pennale (Chemmeen), Pennayi pirannenkil, Viralonnillenkilum (Veluthambi Dalawa, and Velutha penne velutha penne (Nairu Pidicha Pulivalu). His last song was Kaatu Paranjathum recorded for the 2010 film Thanthonni. He sang this song after a break of 40 years from his last recorded film song. He composed music for the films Samasya, Velichamillatha Veedhi, and Mayilpeeli. The songs Kili chilachu from Samasya and Indu sundarasmitham thookum from Mayil Peeli were highly popular.
In 1984, Udayabhanu launched the musical troupe Old is Gold which has conducted several stage shows in India and abroad. Udayabhanu represented India at the Asia Pacific Popular Song contest in Singapore in 1985. He was also the chief conductor of the Drums of India music programme which was orgnaised as part of the Republic Day celebrations in 1985. He was the chief conductor and composer of Bharatiyam conducted in Thiruvananthapuram. He conducted choral groups in all Indian languages from Delhi Central Production Unit and Delhi Doordarshan. He composed 32 poems by renowned Kerala poets in connection with the Golden Jubilee celebrations of Independence. He conducted music for more than 100 patriotic songs. Of these, more than 80 were in Malayalam. The rest were in Tamil, Telugu, Kannada, Hindi, Bengali, Gujarati, Punjabi, Assamese, Sindhi, Kashmiri, Marathi, and Oriya.