Saoirse Ronan has sparked speculation she is dating a ballet dancer.

The 23-year-old actress is said to have been getting close to her reported new love interest Calum Lowden in recent weeks after meeting through mutual friends, and they were spotted hooking up at the post-BAFTAs dinner on Sunday night (18.02.18).

An insider said: ''Saoirse didn't win on the night but couldn't have looked happier.

''She headed from the awards to the official dinner at Grosvenor House on Park Lane and hooked up with Calum again. They looked like things are going great between them.''

The 'Lady Bird' actress and the Royal Swedish Ballet rising star are said to have kept their rumoured romance ''low-key'' on the night.

The insider added to The Sun newspaper: ''It's early days and they have been keeping things low-key, but there was no mistaking the spark between them.''

Saoirse was up for the top actress award at the star-studded ceremony for her role in 'Lady Bird', but sadly lost out to 'Three Billboards Outside Ebbing, Missouri' star Frances McDormand.

Calum attended the event with his actor brother Jack Lowden, who played fighter pilot Collins in 'Dunkirk'.

Jack posted a picture of himself and Calum on Twitter from the spectacle, adding the caption: ''Great night at Bafta with the brother. Thanks @LouisVuitton for the cool get up too. (sic)''

Saoirse recently picked Bruno Mars as her fantasy boyfriend over the likes of Drake and Chance the Rapper while playing a game on 'The Ellen DeGeneres Show'.

But when host Ellen pointed out he has a girlfriend, Jessica Caban, Saoirse joked: ''Companionship is fine. Even just a friendship is fine. Even if we just email or have a correspondence.''

The 'Brooklyn' star also claimed she isn't great at dating.

She said: ''I don't know how to date ... I don't date, I'm not into the whole, 'Let's go out for dinner.' ''