A common room is a type of shared lounge, most often found in halls of residence or dormitories, at (for example) universities, colleges,^[1] military bases, hospitals, rest homes, hostels, and even minimum-security prisons.^[2] They are generally connected to several private rooms, ^{[citation needed]} and may incorporate a bathroom. They may also be found in secondary schools and sixth form colleges.^[3]

Regular features include couches, televisions, coffee tables, and other generic lounge furniture for socializing.^[2] Depending on its location and purpose of use, a common room may be known by another name. For instance, in mental hospitals, where access is usually restricted to the daytime hours, this type of room is often called a "day room".^[2]

In Singapore, the term usually refers to a bedroom without attached bathroom in an HDB apartment unit.^[4]

• Common rooms around the world
• 
  Common room from Karakoram Hostel, I.I.T. Delhi
• 
  Boys Common Room at Kesgrave Hall School, United Kingdom
• 
  Private common room in a residential suite at Pomona College in California
  (view as a 360° interactive panorama)