The Thin Man, 1933 mystery novel by Dashiell Hammett

Thin client, computer in client-server architecture networks

Thin Lizzy, Irish rock band who formed in Dublin in 1969

The Thin Blue Line

Thin-film deposition, any technique for depositing a thin film of material onto a substrate or onto previously deposited layers

The Thin Man (film), the first of six comic detective films starring William Powell and Myrna Loy

Thin film, material layer of about 1 µm thickness

Thin film memory, high-speed variation of core memory developed by Sperry Rand in a government-funded research project

Thin lens, lens with a thickness that is negligible compared to the focal length of the lens in optics

Thin-walled summary and related information.

Thin layers (oceanography), congregations of phytoplankton and zooplankton in the water column