The word Nilakantha may refer to: Shiva, one of the principal deities of Hinduism Nilakantha (spider), a genus of jumping spiders Neelakantha Chaturdhara (Nīlakaṇṭha Caturdhara), seventeenth-century commentator on the Mahābhārata Nīlakantha dhāranī, a Mahayana Buddhist mantra Nilakantha Somayaji, mathematician of the Kerala school Nilakantha Daivajna, 16th century astronomer-astrologer