MSSA may refer to:
- Member of the Order of the Star of South Africa
- Methicillin-sensitive Staphylococcus aureus, a subspecies of bacterium
- Military Selective Service Act, a law establishing the current Selective Service System in the United States
- Military-style semi-automatic, a firearm (abbreviation commonly used in New Zealand)
- Mind Sports South Africa
- Montreal Student Space Associations
- MSSA Chemical company, a French chemical company, also known as Métaux Spéciaux
- Master of Science in Social Administration, master's degree from the Mandel School at Case Western Reserve University, equivalent to a master of social work
- Multi-channel/-variate Singular spectrum analysis, an extension of the SSA technique
This disambiguation page lists articles associated with the title MSSA.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: