Kadampoothramadam Gopalan Jayan (21 November 1934 – 16 April 2024) was an Indian Carnatic singer, musician, and music director from Kerala.

[4][5] Jayan and his twin brother K. G. Vijayan, with whom he formed the famous Jaya-Vijaya team, were born in a Brahmin Kadampoothramadam family as the third and fourth sons of late Gopalan Thanthrikal and late Narayani Amma on 21 November 1934 at their home in Kottayam.

Their first guru was Raman Bhagavathar, and then they learnt from Mavelikkara Radhakrishna Iyer.

They underwent a Ganabhooshanam course at the famous Swathi Thirunal College of Music at Thiruvananthapuram after their schooling, and passed with distinction.

Later, they had their advanced training from Carnatic giants like Alathur Brothers, Chembai Vaidyanatha Bhagavathar and M. Balamuralikrishna.