Lar may refer to:
- Lar, the singular form of Lares, domestic deities in ancient Rome
- Lar Gibbon (Hylobates lar), also known as the white-handed gibbon
- Libyan Arab Republic
- Light Armored Reconnaissance, a battalion of the US Marine corps
- The IATA airport code for Laramie Regional Airport in Laramie, Wyoming
- The file format of the Liferay portal system
- Location-Aided Routing, A routing protocol for Mobile ad hoc networks (MANETs)
- Lar, Iran, a city in Fars Province
- Lar, India, a town and nagar panchayat in Deoria District, Uttar Pradesh
- L.A.R, Large Account Reseller