LN

LN may refer to:

• Lawful Neutral, an alignment in Dungeons & Dragons
• Liaoning, China
• Libyan Arab Airlines' IATA code
• Liquid nitrogen
• Louisville and Nashville Railroad's reporting mark
• LN postcode area in Britain, named after Lincoln
• LN (band), American slow core band
• Lymph node, an anatomical feature involved in immunological function.
• The Sims 3: Late Night, the third expansion pack to The Sims 3

Ln may refer to:

• Lane, as part of the proper name for a country lane
• Lanthanoid, a series of chemical elements

ln may refer to:

• ln (Unix), a UNIX command that creates file links
• Natural logarithm, mathematical function
• Lingala language's ISO 639 code