Apple currently provides official, free downloads of Mac OS X Lion for users with compatible older hardware. While many users look for "ISO" files, Apple officially distributes the installer as a disk image (.dmg) file. Direct Official Downloads
The download provides a .dmg (disk image) file, which is the standard macOS format for installers. macos lion iso download
A quick internet search for "macOS Lion ISO" will yield thousands of results from file-hosting websites. Apple currently provides official, free downloads of Mac
: Available at Apple Support . Installation Requirements A quick internet search for "macOS Lion ISO"
Double-click InstallESD.dmg to mount it. It will appear on your desktop or in the Finder sidebar.
If your goal is to create a bootable ISO for a virtual machine, you generally cannot download one directly from Apple. Instead, you must convert the official .dmg file. Download the DMG from Apple Support.
Instead of hunting for an ISO: