• Chip log, a device used in navigation to estimate the speed of a vessel through water
• Data log, a record of sequential data
• Laplacian of Gaussian
• Log , an architectural magazine
• Logarithm, the mathematical operation that is the inverse of exponentiation, or the result of this operation
• Logbook, a log of important events in the management, operation and navigation of a ship
• Lord of Games, commonly abbreviated as LOG, a secondary antagonist in Banjo-Kazooie: Nuts & Bolts
• Web log, Web's log, Weblog, 'blog, or blog, a reverse chronological online journal
• Wooden log, also known as timber, wood from trees used for construction, fuel, or wood pulp for paper production

Entertainment

• The Log , a nickname given to Les Paul's first solid body electric guitar built in the 1930s

Places

• Log, Russia, name of several rural localities in Russia
• Log, Kranjska Gora, a settlement in the Kranjska Gora municipality in the Upper Carniola region of Slovenia
• Log, Lukovica, a settlement in the Lukovica Municipality in the eastern part of the Upper Carniola region of Slovenia