Robert E. Lowder (born ca. 1944 in Alabama) is a former American banking executive, and founder and former longtime CEO of the failed Colonial Bank and Colonial BancGroup, Colonial Bank's former parent company. Lowder is an Auburn University alumnus, graduating with a B.S. in Finance in 1964. He is also a former long-serving trustee of Auburn. The Lowder Business Building on Auburn's campus is sometimes thought to be named after him, but according to the AU website, the building is named for his parents, Edward L. and Catherine K. Lowder.