Dean Fuleihan

Dean Fuleihan ( ; born January 27, 1951) is an American government official, who has served as the First Deputy Mayor of New York City since 2026 under Mayor Zohran Mamdani, having served in the same role from 2018 to 2021 during the second term of Mayor Bill de Blasio. Previously, he served as the director of the New York City Mayor's Office of Management and Budget during de Blasio's first term, for over 30 years, and as an executive vice president at SUNY College of Nanoscale Science and Engineering.

Early life and education Fuleihan was born to a Lebanese-American family, with his mother's parents and his father having immigrated from Lebanon. He was raised in Syracuse, New York.

Fuleihan earned a Bachelor of Arts degree in economics from Alfred University and studied public finance at the Maxwell School of Citizenship and Public Affairs at Syracuse University.

Career Fuleihan began his career as a policy analyst in the New York State Assembly in 1978. He worked as a budget analyst and rose to become long-time Speaker Sheldon Silver's "budget guru", Under de Blasio and Fuleihan, the budget of New York City grew from $72 billion to $85 billion.

In late November 2017, First Deputy Mayor Anthony Shorris announced he would step down from his post, and de Blasio offered the job to Fuleihan, who accepted the role as First Deputy Mayor effective January 2018. On November 10, 2025, mayor-elect Zohran Mamdani announced that Fuleihan would be his first deputy mayor, having previously advised Mamdani since the primary campaign.