Kalasuri Arisen Ahubudu (Sinhala:කලාසූරි අරිසෙන් අහුබුදු) (1920–2011) was a writer, orator, scholar, playwright, teacher (Guru), Sinhala lyricist, author and poet in Sri Lanka, born in Mudiyallagahawatta in Malalaga, Koggala. He is a member of the Hela Havula. He has received three government awards for literary works, the title of Kalasuri from the Government of Sri Lanka, and the Sarasaviya Awards film award for best composer. As a composer, he is especially noted for writing music performed by W.D. Amaradeva, such as Gilem Obe Guna.
Ahubudu was the second of the three children of the family of Devundara Devamanimendra Heronis De Silva and Wathugedara Laisohami. The child was named as Ariyasena Arsuboda by parents, which he later converted to fairly pure Sinhala name Arisen Ahubudu.
In 1937, at the age of 17, he first involved as a teacher in Piyadigama Saripuththa College, Ahangama. munidasa gave an honorary to him as "Subas Pathin Kiwithi", due to excellent poetry he possess.