What is "mrsa"

MRSA is the short name for Methicillin-resistant Staphylococcus aureus, a bacterium.

MRSA may refer to:

• mrsA, 2-Ketoarginine methyltransferase, an enzyme
• MRSA, Metrolina Regional Scholars' Academy, Charlotte, North Carolina, USA charter school
• Mr. Sa, see Sá
• MRSA, ICAO airport code for San Alberto Airport, Costa Rica