The Miami Heat icon, 32, and the actress, 41, were wed on Saturday night in Miami, according to People magazine.
Wade proposed to his muse last December by involving two of his sons -- Zaire and Zion -- and the nephew he's been raising.
"I was completely surprised. Him and the boys planned it completely, as a family," Union told "Live with Kelly and Michael" in January. "We were just gonna spend the day together, having a little quality time, went to brunch, I'm clueless."
After the brunch in December, Union said, they went to visit their home, which was under construction at the time. The boys told the actress they had something to show her.
"Me and [Dwyane] turn around and they're like, 'OK, now!' And they're holding signs that say, '... Will you marry us?'" But the thing is, they ask me all the time, so I was like, 'Oh, this is embarrassing! Now they've made signs!'" she said. "I turn to D like, 'Here we go!' and he's down on one knee."
And by saying "I do" this weekend, the rest is history!
A "Save the Date" video leaked earlier this month showed the proposal.