No one really knows what the acronym mIRC stands for. Even the program's creator has never said what it stood for. There are a multitude of theories and opinions on what it stands for. Some of those are:
- Microsoft Internet Relay Chat
- mIRC Internet Relay Chat
- Multiple Internet Relay Chat
- My Internet Relay Chat
- Moo/Mu Internet Relay Chat
- Multi-user Internet Relay Chat
- Mardam-Bey's Internet Relay Chat
Those are just some of them.
Now, if you are not talking about the chat program, well, that is a different story, MIRC could then be talking about:
- Micro Infra-Red Camera
- Management Information Relay Control
- Military Intelligence Reserve Command
- Metsovion Interdisciplinary Research Center