In computer networking, a workgroup is a collection of computers on a local area network (LAN) that share common resources and responsibilities. The term is most commonly associated with Microsoft Windows workgroups, but it can be applied to other environments as well. Windows workgroups can be found in homes, schools, and small businesses. Although all three are similar, they do not function in exactly the same way as domains and HomeGroups.

Microsoft Windows Workgroups organize PCs as local peer-to-peer networks that make it easier to share files, Internet access, printers, and other local network resources.

Each computer that is a member of the group has access to the same resources that are shared by the other computers. In addition, each computer can share its own resources if it is configured to do so.

To join a workgroup, all participants must use a matching name. All Windows 10 computers are automatically assigned to a default group called WORKGROUP (or MSHOME in Windows XP).