LN may refer to:
An LNG carrier is a tank ship designed for transporting liquefied natural gas (LNG). As the LNG market grows rapidly, the fleet of LNG carriers continues to experience tremendous growth.
The LN-3 inertial navigation system is an inertial navigation system (INS) that was developed in the 1960s by Litton Industries.
The LNB Pro A, commonly known as Pro A and for sponsorship reasons named the Jeep Élite, is the top-tier men's professional basketball league in France.