Bradford S. Lander (born July 8, 1969) is an American politician, urban planner, and community organizer who has served as the 45th New York City comptroller since 2022. A progressive member of the Democratic Party, Lander was elected to the New York City Council in 2009, serving for twelve years, later serving as Deputy Leader for Policy. His district included portions of Brooklyn. In 2021, Lander was elected city comptroller, and assumed office on January 1, 2022. He was endorsed by progressives such as Alexandria Ocasio-Cortez and Elizabeth Warren.

In July 2024, Lander announced he would challenge incumbent Mayor Eric Adams in the 2025 election. The New York Times Opinion panel chose Lander as its top choice for the Democratic primary for mayor. He trailed and conceded defeat in the Democratic primary to Zohran Mamdani on June 24, 2025. He had campaigned with Mamdani after the two candidates cross-endorsed in the city's ranked choice system.