John P. Angelos is the chairman and CEO of the Baltimore Orioles, a position he has held since 2020, leading the club's front office and overseeing day-to-day business operations. Previously, he served as the Orioles' COO and executive vice president, a position he held since 1999. He also serves as President and Chief Operating Officer of the Mid-Atlantic Sports Network (MASN), overseeing the network's business operations. Angelos is the elder son of Baltimore Orioles owner Peter Angelos.