"There is absolutely no truth to any of the rumors," Smirnoff told Us Weekly in a Wednesday report.
Baldwin and Smirnoff were spotted together last Saturday sitting by the pool at Las Vegas' Palazzo hotel, where an onlooker described the pair as "very affectionate." They subsequently retreated to MGM to watch a boxing match before hitting the Tao nightclub.
Smirnoff and her Dancing with the Stars third-season celebrity partner Mario Lopezcalled it quits on their romantic relationship last month after more than 18 months of dating.