Ōmiya, Omiya, Oomiya or Ohmiya (written: 大宮, 近江谷 or おおみや in hiragana) is a Japanese surname. Notable people with the surname include:
*, Japanese curler
*, Japanese cyclist
*, Japanese voice actor and actor
*, Japanese curler and curling coach
Oumiya (written: 近江屋 or おうみや in hiragana) is a separate surname, though it can be romanized the same way. Notable people with the surname include:
*, Japanese politician
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Japanese-language surnames