The actress, who is best known for her role in the TV series House as well as countless Hollywood blockbusters, took to Instagram on Saturday to announce the birth of Daisy, revealing her full name and that she was born on International Day of the Girl.
Olivia, 32, posted an adorable picture of her newborn laying on a sheep pillow wrapped up in a cute blue, patterned baby grow.
People have reported that Olivia actually gave birth four days previous to her Instagram post, on Tuesday 11th October, but kept her happy news until the weekend to announce.
Along with the picture she added a sweet and funny caption, 'There goes the neighborhood.Daisy Josephine Sudeikis. Born, like a boss, on #internationaldayofthegirl. ❤️'
Fans were quick to congratulate the Hollywood stars, posting thousands of comments and liking the picture 162,000 times. One Instagram user commented, 'She is an absolute doll @oliviawilde congrats to you and hubby💗' whilst another said, 'She is gorgeous! From a father of two, congratulations! They are worth every moment. :D'.
Olivia and her actor fiancée Jason, 41, have been engaged since 2013 and already have a two-year-old son named Otis, who was born in 2014.
This family are experts on cute Instagram posts, including their adorable son Otis in the pregnancy announcement of Daisy. Six months ago Olivia posted a sweet Instagram picture of both mum and son holding their tummies as if pregnant.
She captioned the black and white picture 'oliviawildeMatching baby bumps. ✌️' which showed her sat in black underwear and an open white shirt on a bed, laughing with Otis and holding her already blossoming pregnant stomach.
Congratulations to the new family of four!
How did you tell your friends and family that you had given birth? Did you also use Instagram? Let us know in the comment section!