Alexander Costin is an associate in the Litigation Department.

Mr. Costin joined Debevoise in 2023. From 2021 to 2022, he clerked for the Hon. Rosemary S. Pooler of the United States Court of Appeals for the Second Circuit. From 2022 to 2023, Mr. Costin clerked for the Hon. John G. Koeltl of the United States District Court for the Southern District of New York.

Mr. Costin received a J.D. in 2020 from Stanford Law School, where he was an articles editor of the Stanford Law Review. He received an A.B. summa cum laude and Phi Beta Kappa from Princeton University in 2017.

Mr. Costin is a member of the Bars of New York and New Jersey and is admitted to appear before the Southern and Eastern Districts of New York.