Shepherd Kellen Seinfeld was born Monday in a New York hospital.
A spokesperson for the star confirmed that the mother and baby are both doing well.
The Seinfeld family also includes Julian, 2, and Sasha, 4.
Comedian Jerry Seinfeld and his wife, Jessica, are the happy parents of a new baby boy.
Shepherd Kellen Seinfeld was born Monday in a New York hospital.
A spokesperson for the star confirmed that the mother and baby are both doing well.
The Seinfeld family also includes Julian, 2, and Sasha, 4.