JoAnn Stonier

Mastercard Incorporated

Chief Data Officer
Mastercard Incorporated

JoAnn C. Stonier is Executive Vice President, Chief Data Officer for Mastercard. In this role, she is responsible for enterprise-wide data strategy and management to ensure the organization maximizes the value of its information assets. ​Previously, JoAnn was EVP Chief Information Governance & Privacy Officer for the organization. In that role she was responsible for worldwide privacy and information governance, leading those teams as well as leading regulatory engagement in this area. Prior to joining Mastercard in 2008, JoAnn was the Chief Privacy Officer for American Express Company. She also held various roles of increasing responsibility at American Express, including Chief Operating Officer, American Express Tax & Business Services; Vice President, Acquisition Integration; and Vice President & Assistant to the Chairman. JoAnn has worked at Waldenbooks, Inc., PepsiCo and started her career as an auditor for PriceWaterhouse Coopers. JoAnn received her Juris Doctorate from St. John’s University in Queens, and her Bachelor of Science degree from St. Francis College.

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