Nina Dobrev has insisted she and Zac Efron are "just mates".

The former Vampire Diaries star, 36, and the 37-year-old High School Musical alum were rumoured to be dating after they were spotted on vacation together in September.

Nina has now shut down the romance rumours.

She was asked by a TMZ reporter on Wednesday (01.10.25): "Anything to that Zac Efron thing?"

The journalist swiftly followed up with: "You're just mates?"

To which, Nina replied: "Yeah."

The actress said of dealing with a breakup: "You know what? I'm excited for the future and the only thing that's guaranteed is change."

The pair both attended crypto billionaire Brad Garlinghouse's wedding in the South of France on September 20.

That weekend they were photographed on a yacht with pals.

Days earlier, on September 18, the Daily Mail shared photographs of Nina and Zac swimming in the sea off the coast of Italy.

However, a source told Us Weekly that the pair are simply "good friends".

They said: "Nina and Zac are not dating and have been good friends for over a decade.

"Their friends always joke that they should date, but that is not what is going on. They have been there for each other through many phases of life and have always had each other's back."

The pictures of their pair abroad started surfacing a week after Nina split from Shaun White, after five years of dating.

The Love Hard star and the 39-year-old sports star called off their engagement, but friends insisted there was "no drama" or "cheating involved".

A source told Us Weekly: "There was no drama here. No cheating was involved. They were loyal to each other their entire relationship. At the end of the day, they're human beings, just like everyone else. They genuinely just grew apart and saw they would be better off just as friends and not husband and wife."