Ben Affleck & Jennifer Garner Reveal Son's Name
Find out what the couple have called their newborn baby here...
As we previously reported, the couple - who already have two daughters Violet Anne and Seraphina Rose - welcomed a son to their family in Santa Monica earlier this week.
Affleck has since confirmed the child's name on his official Facebook page, stating: "We are happy to announce on February 27, Jennifer gave birth to a healthy baby boy, Samuel Garner Affleck."
It is thought Jennifer's maiden name Garner has been used as the tot's middle name, instead of a double-barrelled surname.
Before giving birth to her first son, the Valentines Day star previously admitted that it would be "weird" to have a boy, especially after having two girls.
Garner told Ellen DeGeneres: "Three girls is a great way to grow up. I'm one of three girls and my little sister is awesome. It would be so weird to have a boy," adding that the experience would be "cool and different."