Stockholm County Museum, County museum in Sickla, Nacka Municipality, Sweden.

Stockholm County Museum is a digital institution in Stockholm County that preserves and displays artifacts, photographs, and documents related to regional history and development. The collections cover the area's past and are accessible through a website and mobile applications.

Stockholm County Museum was founded in 1983. From 1983 to 2006 it occupied a building in Sabbatsberg, then moved to Dieselverkstaden in Sickla in 2006. In 2018 it became a purely digital museum with no public premises, and since January 2021 it has been part of Region Stockholm's cultural administration.

The museum gathers photographs and stories from residents through digital channels, documenting how local traditions shape daily life across the region. These collections reflect the identities and customs that matter to people who live here.

The museum offers three free apps: Samtidsbild, Upptäck konsten and Upptäck historien. They let users explore historic sites and public art across Stockholm County and upload their own contemporary images. The office is at Medborgarplatsen in Stockholm.

Since 2021, the museum has operated under Region Stockholm cultural administration with a focus on supporting sustainable community development. This ties the institution to broader regional goals beyond traditional museum functions.