Allen Abraham (1865 – 9 July 1922; born Subramaniar Ambalavanar) was a Ceylon Tamil academic and astronomer.

[2] Both of his parents died during the 1876 cholera epidemic after which he was brought up by his uncle Kanthappar Saravanamuttu.

[2] He had some basic education in his home village before being selected to attend the Aid Training School in Tellippalai in December 1881.

[5] He wrote several articles on the subject for the Morning Star, Jaffna College Miscellany and the Royal Astronomical Society.

[6][11] Asides from astronomy, Abraham was interested in music, Tamil literature, agriculture and social work.

[5] Eight lyrics written by Abraham are still used as hymns by the Jaffna Diocese of the Church of South India.

[5] He was secretary of the Jaffna Council of the South United Church from 1915 till his death.