Mary McNiff

Mary McNiff is currently leading Citi's firm-wide policy simplification programme, a strategic initiative aimed at strengthening operating effectiveness, risk discipline, and scalability across the global institution. McNiff has spent over 30 years running auditing teams on four continents for Abbey National, Barclays, JPMorgan Chase, Lloyds Banking Group and Citigroup. She took accounting classes at night and on weekends while working full time at Abbey National in London, reflecting her early commitment to professional development in financial services.

Career history at Citi and prior roles

• Head of firm-wide policy simplification programme (2026–present)
• Chief Operating Officer, International and Legacy Franchises (2025–2026)
• Chief Compliance Officer, Citigroup (2020–2025)
• CEO of Citibank, N.A., accounting for approximately 75% of Citigroup's assets (2019–2020)
• Chief Auditor, Citigroup (2017–2019)
• Chief Administrative Officer (CAO), Latin America & Mexico (2012–2017)
• Managing Director for Change, Lloyds Banking Group (pre-2012)
• Internal Audit Leadership team member, Barclays and JPMorgan

At Lloyds, McNiff led a major data migration involving the transformation of 63 million customer records from three systems into one and spearheaded a £2 billion group-wide process simplification programme. She appeared on American Banker's Most Powerful Women to Watch list in 2018, 2019, 2020 and 2021, and was recognized as a Notable Woman on Wall Street in 2021.

What Mary McNiff could bring to the firm-wide policy simplification programme: Based on her documented career, McNiff is uniquely positioned to lead enterprise-wide policy rationalization. Her expertise spans large-scale process transformation, having directed a €2 billion simplification initiative at Lloyds and led Citi's institutional, compliance, and operational functions. Her background in audit and controls provides deep understanding of regulatory requirements and risk frameworks—critical for simplifying policies while maintaining institutional safety and soundness across 95 countries and territories where Citi operates.