George Foreman's Son -- Off the Hook in Domestic Violence Case

Prosecutors have thrown in the towel in the domestic violence case against George Foreman's son ... TMZ Sports has learned.

We broke the story ... 23-year-old George Foreman the 5th was arrested back in February for allegedly choking his wife during a heated argument at their home in Texas.

But we're told ... in the end, prosecutors just didn't have enough evidence to move forward with a case against him.

"We didn’t think we could prove [that Foreman strangled his wife]," Harris County D.A. spokesperson Lisa Porter tells TMZ Sports.

The D.A. eventually filed docs to drop the case against Foreman and a judge has signed off -- meaning Foreman is officially off the hook.