Melputtur Narayana Bhattatiri (Malayalam: മേല്പുത്തൂർ നാരായണ ഭട്ടതിരി Mēlputtūr Nārāyaṇa Bhaṭṭatiri; 1560–1646/1666), third student of Achyuta Pisharati, was a member of Madhava of Sangamagrama's Kerala school of astronomy and mathematics. He was a mathematical linguist (vyakarana). His most important scholarly work, Prakriya-sarvasvam, sets forth an axiomatic system elaborating on the classical system of Panini. However, he is most famous for his masterpiece, Narayaneeyam, a devotional composition in praise of Guruvayoorappan (Krishna) that is still sung at Guruvayoor Temple.