INC
- Iglesia ni Cristo
- Ijaw National Congress
- Inc. (disambiguation)
- Independent Network Charismatic Christianity
- Indian National Congress
- Indian National Council
- Indian Nursing Council
- Insel Air
- Interim National Constitution of the Republic of Sudan, 2005
- International Network of Churches
- International Network of Crackers
- International Numismatic Council
- Iraqi National Congress
- List of political parties in India
- National Institute of Culture
- The (International) Noise Conspiracy
- Yinchuan Hedong Airport