Ndu may refer to:

  • Ndu, Cameroon, a town and commune in Cameroon
  • Ndu languages, a language family of Papua New Guinea
  • Ndo language, a language of Uganda and Congo

NDU may refer to:

  • National Defense University, Republic of China (Taiwan)
  • National Defence University, Islamabad, Pakistan
  • National Defense University, United States
  • National Distribution Union, a trade union in New Zealand
  • Nationaldemokratisk Ungdom (National Democratic Youth), Swedish youth organisation
  • Naval Diving Unit (Singapore), part of Singapore Navy
  • Ndejje University, Uganda
  • New Design University, Austria
  • Niger Delta University, Nigeria
  • The Nippon Dental University, Japan
  • Notre Dame (disambiguation)#Universities and Colleges