Bob Diamond is a British-American banker and former CEO of Barclays, one of the world's major financial institutions. He was born in 1951 in Concord, Massachusetts, and studied at Colby College and the University of Connecticut. Diamond's career in finance spanned several decades, and he became known for his leadership in the banking industry. Despite facing controversies during his tenure at Barclays, Diamond played a significant role in shaping the global financial landscape.