A Los Angeles judge entered the default judgment in late December after defendant Chad Slater admitted that his story was false.
Mr Slater said he would not actively defend himself against the lawsuit, Cruise's lawyer Ricardo Cestero says. Ricardo Cestero said Cruise was "very, very pleased with getting this judgment".
"We don't have any idea whether he will ever have means to pay, but we have obtained the judgment, which will hopefully make it clear that demeaning Mr Cruise will not be a successful endeavour," he said.
Cruise, who is filming The Last Samurai in New Zealand, plans to donate any money he receives from the judgment to charity, he added.
The judgement marks the second time Cruise has won legal battles to quash rumours that he is gay. The default judgement was entered by the judge in late December.
Cruise had originally succeeded in suing Slater over the false allegations, but later requested the latest judgement when Slater defaulted on the suit last year.
Slater was not available for comment. It is not clear whether Cruise will demand that Slater - a former "erotic wrestler" also known as Kyle Bradford - pays the judgement fee.
