S. S. Mani Bhagavathar is an Indian Carnatic music singer, cine actor and a playback singer in Tamil language films.

Born at Thirupanangudi in Mayavaram his full name is S. Subramanian. He was the principal disciple of Papanasam Sivan.

Whenever Guru Papanasam Sivan composes a new song, he will first teach it to S. S. Mani to sing. Mani's duty is to practice it well and then demonstrate it to famous singers like D. K. Pattammal, Madurai Mani Iyer and the like.

Every year, during the Tamil month of Margazhi (December-January), Papanasam Sivan will do the street Bhajan circulating Kapaleeshwarar Temple in Mylapore with a group of singers. Mani was one of the regular group member. After the death of Papanasam Sivan, Mani continued the Bhajan till his dying day.

S. S. Mani or S. S. Mani Bhagavathar was a registered musician at Tiruchirappalli All India Radio broadcast station. He also functioned as a teacher in Kalakshetra.

He accompanied Papanasam Sivan and Madurai Srirangam Aiyangar in their music concerts. He also accompanied Kothamangalam Subbu in his Katha Kalakshepams (musical discourses).