Ōmori or Omori may refer to:
Places Ōmori, a district in Tokyo, Japan Ōmori, Akita, a former town in Hiraka District, Akita Prefecture, Japan Ōmori Station (disambiguation), multiple railway stations in Japan Omori, New Zealand is a rural settlement in New Zealand
Other uses Ōmori (surname), a Japanese surname Omori (video game), a 2020 role-playing video game