Siobhan Vivian is a bestselling American novelist, editor, and screenwriter. She was born on January 12, 1979, and has established herself as a prominent figure in the world of young adult literature.

She is the author of critically acclaimed books including The Last Boy and Girl in the World (April 2016), The List, Not That Kind of Girl, Same Difference, and A Little Friendly Advice. Vivian is also well-known for co-writing the Burn for Burn series alongside her best friend Jenny Han.

Siobhan Vivian currently resides in Pittsburgh, where she continues to inspire readers with her storytelling prowess and engaging narratives.