The role of a chief information officer (CIO) in an organization is to oversee the information technology strategy and ensure that IT aligns with business goals. The CIO is responsible for managing IT resources, including infrastructure, applications, and personnel. They drive digital transformation initiatives and help to leverage technology for competitive advantage. Additionally, the CIO ensures data security, compliance with regulations, and fosters communication between the IT department and other business units. The position is critical for leading technology initiatives that support organizational growth.