MLOA Views 7 meanings found MLOA most often signals a medical leave of absence, but the same letters also represent regional sports officiating groups, mortgage lending associations, and outdoor recreation organizations. Medical Medical Leave Of Absence Miscellaneous Minority Limousine Operators of America Medium Level of Assurance Community Manitoba Lodges and Outfitters Association Manitoba Lodges Outfitters Association Business Mortgage Lenders of America Sports Maine Lacrosse Officials Association