William H. McGowan was an influential American businessman and entrepreneur, best known for his role in the telecommunications industry. He served as the CEO of MCI Communications Corporation, where he played a crucial part in transforming the company into a major competitor in the long-distance telephone market during the 1980s and 1990s. McGowan was recognized for his innovative approach to business and his commitment to customer service. His leadership helped MCI become a pioneer in the development of fiber-optic technology, which significantly improved communication capabilities. His contributions to the industry have left a lasting impact on telecommunications.