Dwight Howard -- ATL Child Abuse Case Closed ... No Charges Filed

Dwight Howard will NOT face criminal charges for allegedly beating his then 6-year-old son Braylon with a belt buckle ... TMZ Sports has learned.

As we previously reported, the NBA star was being investigated by the Atlanta Police Department over an incident that went down in Georgia back in August 2014.

We spoke with Howard's attorney David Oscar Markus who told us, "We are gratified that the Atlanta Police Department, after fully examining the frivolous allegations against Dwight Howard, has closed the case and decided not to proceed with charges."