Marie Lu (born Xiwei Lu, 11 July 1984) is a bestselling American author of young adult science fiction and fantasy. She is renowned for her epic novels, such as the Legend series, set in a dystopian and militarized future, the Young Elites series, the Warcross series, and Batman: Nightwalker in the DC Icons series.

Marie Lu graduated from the University of Southern California and currently resides in Los Angeles with her family. Before becoming a full-time writer, she worked as an Art Director at a video game company. Now, she dedicates her time to writing, tending to her plants, and navigating LA traffic. She is deeply honored to share her stories with readers and hopes her books bring them joy, solace, and entertainment.

Her adult fantasy debut, Red City, is highly anticipated and is set to release on October 14, 2025.