The actor, 26, was spotted arriving in Copenhagen, Denmark, from Los Angeles International Airport with a new female companion, identified as Sami Miró, on Sunday.
And on Tuesday, Efron posted an Instagram with Miró outside celebrated local restaurant Noma.
The two were also seen looking cozy while attending an L.A. Dodgers game together on Sept. 22. They were previously seen together while on a double date with Dylan Penn and a male companion at Shutters on the Beach in Santa Monica, California, on Sept. 15.
So who exactly is the Neighbors star's new gal pal?
According to her LinkedIn profile, Miró lives in Los Angeles and works in business development for a digital content and media company.
She seems to be a woman of many talents, as she speaks French and was a Junior Olympic gymnastics state champion in May 2000.
Efron was last romantically linked to Michelle Rodriguez. The pair split after dating for two months over the summer.
Thx to @ReneRedzepiNoma and team @Nomacph. You've created a sophisticated, one of a kind culinary experience I'll never forget. You rock!