What is ".mm"

.mm is the Internet country code top-level domain ( ccTLD) for Myanmar (officially the Republic of the Union of Myanmar). It was assigned in 1997. Prior to 1989, the ISO 3166 alpha-2 code for Burma was BU, but no .bu ccTLD was assigned.

.mm is the Internet country code top-level domain (ccTLD) for Burma.

It is also the filename extension for the following file types:

• FreeMind files
• Objective-C++ source code files