Kunis beat the likes of Jennifer Aniston, 44, and Cameron Diaz, 40, to the top spot on the Empire Cinemas poll, reported Daily Star.
The 29-year-old actress has starred in films like 'Ted', 'Friends With Benefits' and voiced the character Meg on 'Family Guy'
The actress, who is currently dating Ashton Kutcher, has recently also been named the world's sexiest woman by FHM magazine.
"Mila Kunis has had a phenomenal year - she's starred in the highest grossing comedy ('Ted') and is the most in-demand Hollywood star right now. Not only is she naturally stunning, but she has a great sense of humour and isn't afraid to poke fun at herself.