Diana O'Brien

Global Chief Marketing Officer, Deloitte

Diana O’Brien is the Global Chief Marketing Officer for Deloitte responsible for driving growth across all businesses. In this role, Diana connects a network of brand, communications, marketing, and insights organizations. Her responsibility is to champion the voice of the customer, surface deep insights with advanced analytics, increase sales velocity, and gain greater competitive advantage with stronger, differentiated experiences. One of Forbes World’s Most Influential CMOs, O’Brien also leads the C-Suite CMO Program and serves as an advisory partner to global life sciences clients. Diana serves on the boards of the American Marketing Association, the Ad Council, Impact Autism Foundation, as well as the Advisory Board of the University of Cincinnati Advancement and Transition Services programs.

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