LOR may refer to:
- Lady of Rage
- Laing O'Rourke, International Construction Solutions Contractor behind Heathrow T5 and a 2012 Olympics Delivery Partner.
- Lunar orbit rendezvous, a method used to land man on the moon and safely return
- Light Output Ratio
- Linux.org.ru, a website for Russian-speaking Linux and BSD users
- Lindsey Oil Refinery, an oil refinery on the east coast of the United Kingdom
- Liverpool Overhead Railway a closed Overhead railway in England
- LiveonRelease, an all girl punk rock band
- Lorton (Amtrak station), Virginia, United States; Amtrak station code LOR.
- Letter of recommendation
- Letter of representation
- Letter of reprimand
- Loss of resistance, in epidural anesthesia
- Learning object repository
- The Lord of the Rings, book series by J.R.R. Tolkien
- London Oil Reports
In addition, Lor may refer to:
- Lor, Armenia, a town of Syunik province
- Lor, Aisne, a commune of the Aisne département, in northern France
- Thao Vang Lor, Sue Lor, and other members of the Lor family in the film Gran Torino