Hampa Nagarajaiah (Kannada: ಹಂಪಾ ನಾಗರಾಜಯ್ಯ) (born October 7, 1936) is an eminent Kannada scholar on Jainism. Popularly known as Hampana, he was born at Hampasandra Village located in Gowribidanur, Chikkaballapur District in the Indian state of Karnataka.
Hampana completed his early education at his native village and neighbouring towns. Later he moved to Mysore from where he completed his post-graduation in Kannada literature in 1959. He was soon appointed as lecturer in Kannada and continued to serve the University of Mysore including an appointment as lecturer in Kannada. He served in capacities like professor and dean of arts faculty before retiring in 1996. Hamapna has delivered guest lectures at renowned western universities.