The Associated Press reports that "mother and daughter are doing well," and that the couple "is seeking privacy and are supporters of the No Kids Policy."
Johansson and Dauriac, a French former journalist, have been engaged since September, 2013. The blond bombshell was formerly married to actor Ryan Reynolds for two years before getting divorced in 2010.
Congrats to the first-time mom! We wish Scarlett and her new family the very best. What do you think of the name Rose? Sound off in the comments below!