The former supermodel and partner Gregorio Marsiaj - who already have sons George, five, and Philipe, two, together - have welcomed another boy into the world and named the child Edward, a spokesperson has confirmed to US Weekly.
No further information was available.
The Czech beauty recently revealed that as much as she enjoyed motherhood she is already getting emotional at the thought of her young sons leaving home.
She said: "Being a mother is a hard job, but it's the best in the world. Every day is something new and great. George is at a wonderful age. He's in love with his teacher.
"He's already trying to find out how I'm going to feel about it when he leaves home. He's like, 'Mum, I'm going to marry and leave the house and have a family and are you going to miss me? How sad will you be?' It's a taste of what is to come."
Eva has previously admitted the pressures of needing to work mean she relies on help caring for her sons.
Saying "I didn't want to have a nanny at first. I wanted to do everything on my own. But the best advice I can give is to have some sort of help".
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