Based on comments made by Tom Felton, Harry Potter seemingly had a "crush" on Draco Malfoy.
While in the Harry Potter series, Harry's romantic interests were primarily Cho Chang and eventually Ginny Weasley, Felton's comments suggest a possible unacknowledged or even unconscious attraction towards his rival, Draco. It's important to note this is based on an actor's interpretation and not explicitly stated in the books themselves.
