Leana Sheryle Wen (born Wen Linyan; January 27, 1983) is an American physician, author, professor, speaker, consultant, newspaper columnist and television commentator. She is former health commissioner for the city of Baltimore and former president of Planned Parenthood. She has written two books based on her experiences as a medical professional.

Wen has served as a public health communicator during the COVID-19 pandemic and 2022 mpox outbreak, appearing frequently on CNN as an on-air medical analyst.

Wen was asked to testify four times to Congress during the COVID-19 pandemic, including twice to the Select Subcommittee on the Coronavirus Crisis.

Currently, Wen serves as a public health professor at George Washington University and is a nonresident senior fellow at the Brookings Institution. She is also a columnist for The Washington Post and a medical analyst for CNN