To thine own self be true.
— Shakespeare, Hamlet

Ximena Chin is student in Wonder, as well as in Shingaling. She attends school at Beecher Prep, where she is friends with Ellie, Savanna Wittenberg, Summer Dawson and Charlotte Cody. She is known to be extremely smart and won the gold medal for "overall academic excellence in the fifth grade". She has a little brother named Eduardito who has Down's Syndrome, who also is part of the reason she ends up accepting Auggie. She is dating Miles Noury.

She is portrayed by Emily Delahunty in Wonder.