The Bærum mosque shooting or Al-Noor Islamic Centre shooting occurred on 10 August 2019 at the Al-Noor Islamic Centre mosque in Bærum, Norway, about 20 kilometres (12 mi) west of the capital city Oslo. Philip Manshaus, a 21-year-old Norwegian man, shot and killed his adopted stepsister at their home. He then drove to the mosque and shot his way through the glass door before opening fire, hitting no one. He was subdued by three worshippers after a scuffle and turned over to police. Manshaus was convicted of murder and committing an act of terrorism, and sentenced to 21 years preventative detention - an order which, in Norway, can be extended indefinitely.

Bærum is a municipality in the Greater Oslo Region in Akershus County, Norway. It forms an affluent suburb of Oslo on the west coast of the city. Bærum is Norway's fifth largest municipality with a population of 128,760 (2021). The administrative centre of the municipality is the town of Sandvika. Bærum was established as a municipality on 1 January 1838.