They were last pictured together in July 2016, when she enjoyed a summer day out with his mother My in New York.
The full name of Alexander Skarsgard is Alexander Johan Hjalmar Skarsgard.
He is famous for his role in Vampire on HBO series. He is also son of a Swedish actor Stellan Skarsgard.
The pair had a brief romance when they were spotted hand-in-hand last year, but if Alexa's recent Instagram post is anything to go by, they might be in for a round two...
Unclear what the other guy did."We were sure the flirty post was indicative of their reignited flame, but then a photo of them chatting at the Barclaycard British Summer Time Festival ( just emerged) has pretty much confirmed it.
#tarzan I spent 6 months eating high protein meals 5 times a day and suffering through hefty regular workouts to prepare for this Instagram.
A post shared by Alexa (@alexachung) on In the caption, Alexa said: "Human.
I’ll take him out with my buddies in LA or in Stockholm, and it’s never awkward or anything.
So infatuated are his fans that they’ve coined the term ‘skarsbrow’ about him.
He has a long list of girlfriends started with Alicia Vikander to present girlfriend Alexa Chung, as he is dating with Alexa Chung right now in 2017.