LNC is a three letter acronym that may stand for:
- Chief legalman (US Navy)
- Legal nurse consultant, a health care professional that aids in legal cases
- Lengbati, a Papua New Guinea airport
- Leszynski naming convention, a guide for programming notation
- Lëvizja Nacionale Çlirimtare or National Liberation Movement, an Albanian resistance organization during World War II
- Libertarian National Committee
- Libertarian National Convention
- Low noise converter, a device used in satellite receivers
- Local News on Cable Virginia
- Late Night Counsell, an Ottawa late night talk radio show
- Law of Non-Contradiction, one of Aristotle's three classic laws of thought