Nilkanth, Neelkanth, or Nīlakaṇtha (lit. 'blue throat') is another name or characteristic of the Hindu deity Shiva. It may also refer to:

• Mahipatram Rupram Nilkanth, Gujarati educationist, reformer, novelist and biographer
• Neelakantha Chaturdhara, seventeenth-century commentator on the Mahābhārata
• Neelkanth Ganjoo, judge in the Jammu and Kashmir High Court, India
• Neelkanth Tiwari, Minister of State in Government of Uttar Pradesh in Yogi Adityanath ministry
• Nilakantha Daivajna, 16th-century astronomer-astrologer
• Nilakantha Somayaji, mathematician of the Kerala school
• Nilkanth Singh Munda, member of the Legislative Assembly of India from Khunti constituency
• Ramanbhai Nilkanth, Gujarati writer
• Swaminarayan, known as Nilkanth Varni during his teenage years and founder of the Swaminarayan Sampradaya religious movement
• Vidyagauri Nilkanth, Gujarati social reformer, educationist, and writer

• Indian roller, a bird of the family Coraciidae, known as nilkanth in Hindustani
• Nilakantha (spider), a genus of jumping spiders

• Nilkantha (mountain), a peak of the Garhwal division of the Himalayas, in Uttarakhand, India
• Nilkantha, Nepal, in Dhading District, Bagmati Province

• Nilakanta (Hinduism), the specific epithet used by Shiva
• Neelkanth (film), a 2012 Indian Gujarati film
• Nīlakantha dhāranī, a Mahayana Buddhist mantra

• Bluethroat, a species of songbird