The academic and professional education of Dr. Ishantha Siribaddana has been received in many part of the country due to his parents work enrollment has been spanned through various parts of the country as government employees.
- Nursery Education - St Theresa Nursery School Kurundugaha Hathapma - Elpitya (1973 - 1974)
- Grade 1 - Grade 3 Rajakiya Vidyalaya (Previously known as Hulandawa Nawa Kanitu Vidyalaya) Moneragala (1975 -1978)
- Grade 4 - Grade 5 - Dharmashoka Vidyalaya (Previously Known as Kanishta Vidyalaya) Bandarawela (1978 - 1980)
He has qualified the grade 5 scholarship examination obtaining the 8th position in Badualla District with 178 marks out of 200. - Grade 6 - Grade 12 - Ananda College - Colombo 10 (1980 - 1987)
He has qualified Ordinary Level Exam with four Distinctions and four Credits and Advance level with three credits and one pass in mathematics stream. - Gangarama Technical School - Followed Certificate Course in Motor Engineering.
- Institute of Chemistry Ceylon - Followed Industrial Chemistry Graduate Program (1988 - 1991) and Ishantha Siribaddana was offered Merit Bursary Scholarship Award at the end of the first year to follow second year for the free of charge.
- University - University of Colombo (1988 - 1994) - Completed
