Ayyappan Pillai, better known by his pen name Abhayadev (25 June 1913 – 26 July 2000) was an Indian poet and lyricist during the 1970s in Malayalam movies.

[1] He wrote lyrics for around 500 films and dialogues for 25 Malayalam movies.

[2][3] He was born to Karimalil Kesava Pillai who was also a well-known poet, at Pallam near Kottayam.

[5] He was actively involved in the activities of Sahitya Pravarthaka Cooperative Society (SPCS), Hindi Prachar Sabha, and numerous other social and cultural organisations till his death.

[7] His grandsons Ambilikuttan is a playback singer, and Jayadevan is a violinist settled in Canada.