NTK could refer to:

• Naam Tamilar Katchi, an emerging political party in Tamil Nadu, India, based on Tamil nationalism.
• Newton Toolkit, an integrated environment for the Newton (platform)
• Need to Know (newsletter), an electronic newsletter
• Ngau Tau Kok, Hong Kong
• Ngau Tau Kok Station, Hong Kong; MTR station code NTK

• Chhinnamasta
• C h hinton
• Chhit Choeun
• CH (Honour)
• Chhota Nagpur
• Chhotanagpur Front
• Chhota Nagpur Plateau
• Chhotanagpur Plateau Praja Parishad
• Chhota Shakeel
• Chhotu Ram
• Chhouk Rin
• Chhun Yasith
• Chi
• Ch'i
• CHI
• Chi-1 Orionis
• Chi1 Orionis
• Chi-1 Sagittarii
• Chi1 Sagittarii
• Chi2 Sagittarii
• Chi-2 Sagittarii
• Chi-3 Sagittarii
• Chi3 Sagittarii
• Chiabrera, Gabriello
• Chiac