Yoon Ha Lee is a Korean-American sf/f writer who received a B.A. in math from Cornell University and an M.A. in math education from Stanford University, and is pursuing an MFA in media composition and orchestration at ThinkSpace Education. His young adult mecha novel Moonstorm is currently a finalist for the Ignyte Award (YA) and was a finalist for the Nebula Award (YA). Yoon's novel Ninefox Gambit won the Locus Award for best first novel, and was a finalist for the Nebula, Hugo, and Clarke awards. His TTRPG Ninefox Gambit RPG, co-authored with Marie Brennan, was a Nebula finalist in game writing.

He has written comic scripts for Marvel ( Doom's Division #1-5 and "Epée Is Truth" in The X-Men: The Wedding Special #1). Yoon's hobbies include game design, art, and destroying the reader. He lives in Louisiana with his family, a 5-string viola, and a lazy catten, and has not yet been eaten by alto clefs.