Peaces is a 2021 novel by Helen Oyeyemi. The novel takes place on a train with several passengers.

Oyeyemi has said the novel "[tries] to have a bit of back and forth with" Can Xue's novels Love In The New Millennium and The Last Lover as well as the writings of Carl Jung.^[1] The work of British writer Barbara Comyns also influenced the novel.^[2] The novel takes place on a fictional train,^[3] called the "Lucky Day" and Oyeyemi was "keen" from the outset of writing the book that it would be a "train book".^[4] While researching trains to write the book, Oyeyemi visited several of Ludwig II of Bavaria's castles.^[5]

Sara Cutaia, in a review published by the Chicago Review of Books, referred to the novel as "delightfully weird and deliciously eccentric".^[6] Reviewers at other outlets, including NPR and Vox, also positively referred to the novel as "weird".^[7][8]