Notable people with the surname include:Yamagata Aritomo (1838–1922), Japanese military leader and politician
Yamagata Bantō (1748–1821), Japanese scholar and merchant
Hiro Yamagata (artist), Japanese artist based in Los Angeles, California
Text adapted from Wikipedia, CC BY-SA 4.0. Photograph: MaedaAkihiko (see Commons), Wikimedia Commons.