Hayden's proud fiancé Wladimir Klitschko took the new photo while relaxing with his lovely lady and newborn at home yesterday (4 January) before sharing it on Instagram.
Kazakhstanian boxer Wladimir is cradling Kaya in his lap in the snap, while US actress Hayden is leaning in and affectionately screwing her nose up at the camera.
Commenting on the photo, he simply said: "#family #klitschko #newyear."
Former Heroes star Hayden welcomed Kaya into the world with Wladimir on Tuesday 9 December and she weighed 7lbs 14 oz.
Confirming the news, the pair gushed: "We are over the moon and madly in love!"
Hayden, 25, announced her engagement to heavyweight boxing champion Wladimir, 38, in October 2013.
In August last year, she confirmed her pregnancy while doing the ALS Ice Bucket Challenge charity craze - and she nominated her unborn baby!
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