MMSC may refer to:
Government Mohammadpur Model School & College, Dhaka, Bangladesh Mamdee Mollah School & College, Gazipur, Bangladesh Madras Motor Sports Club, an auto racing club in Chennai, India Master of Medical Science, an academic degree Methylmethionine sulfonium chloride Multimedia Messaging Service Multi-Mission Surface Combatant, an export variant of the Freedom-class littoral combat ship