MSF can stand for more than one thing. See:

• Médecins Sans Frontières (aka Doctors Without Borders, a non-profit organization dedicated to providing medical care to people in war zones, disaster areas, etc.)
• MSF time signal
• Manufacturing Science and Finance trade union (now part of Amicus) in the UK
• Motorcycle Safety Foundation, the US organization that promotes motorcycle safety
• Microsoft Solutions Framework The Microsoft guidance on how to effectively design, develop, deploy, operate, and support solutions built on Microsoft technologies