Dominion 6.4 in Osaka-jo Hall is an upcoming professional wrestling event promoted by New Japan Pro-Wrestling (NJPW). The event will take place on June 4, 2023, in Osaka, Osaka, at the Osaka-jō Hall and will be the fifteenth event under the Dominion name and ninth in a row to take place at the Osaka-jō Hall.

• New Japan Pro-Wrestling
• Seiya Sanada
• Yota Tsuji
• William Ospreay
• Lance Hoyt
• Riley Vigier
• David Stephen Finlay III
• Luke James Uggles Eatwell
• Jeffrey Cobb