Ohio County Magistrate Daniel Tennant signed a complaint Thursday charging Galloway with a misdemeanor.
Tennant, reached at home Friday evening, said he believes his office has scheduled an initial court hearing Oct. 11.
Shawn Trell, the agent and lawyer for Galloway, said the receiver is in Dallas and has not received the complaint.
"He will absolutely, vigorously defend himself," Trell said.
Trell said Galloway was not directly involved in the melee during a May 14 party. The party erupted into a fight involving more than 100 people.
No one was seriously injured and no arrests were made.
The police detective who drew up the complaint was not available for comment Friday.
Galloway, 28, tore a ligament in his left knee against Philadelphia this month and is out for the rest of the season. The Cowboys acquired him in a trade with Seattle in February.
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