OSFS

AcronymDefinition
OSFSOpen Source Free Software
OSFSOffice of Student Financial Services (various locations)
OSFSOblates of St. Francis de Sales (religious order)
OSFSOn Site Field Supply (drilling)
OSFSOpen Source and Free Software
OSFSOrder of St. Francis - Secular, 3rd Order Franciscan (religious order)
OSFSOld Shoes for Sale