As of the current information available, it appears that Sam Heughan, the actor known for his role as Jamie Fraser in the TV series Outlander, is not married. Despite his on-screen chemistry with his co-star Caitriona Balfe, who portrays his character's wife Claire Fraser, they are just good friends in real life. Over the years, Sam Heughan has been linked to several women, but it's important to note that these relationships are based on rumors and speculation.
One of the names associated with Sam Heughan is Monika Clarke, a model who he was photographed getting cozy with, sparking romance rumors. In the past, he has also been linked to Twin Peaks actress Amy Shiels, although the nature of their relationship remains unclear. Prior to that, he dated American actress Mackenzie Mauzy from 2016 to 2018. It's worth mentioning that Sam Heughan rarely comments on his personal life, and it's possible that his current relationship status is not publicly known.