Logical Volumes are a part of a storage management system that allows users to create and manage disk space more flexibly. They are used in conjunction with Logical Volume Management (LVM), which enables the grouping of physical storage devices into a single logical unit. This makes it easier to allocate, resize, and manage storage without worrying about the underlying physical disks. By using Logical Volumes, administrators can efficiently utilize available storage, allowing for dynamic resizing and better organization of data. This flexibility is particularly useful in environments where storage needs frequently change, such as in cloud computing or virtualization.