Kate Winslet, Ned Rocknroll Name Baby Son Bear Winslet

Credit: Gareth Cattermole/Getty Images for BFI

Rar! If he'd been given his father's (recently assumed) surname, Kate Winslet and husband Ned Rocknroll's newborn son would have the best name ever: Bear Rocknroll! As it stands, the little one's ursine moniker is still quite memorable. Welcoming their little boy on Dec. 7 in West Sussex, England, the Oscar-winning actress, 38, and the Virgin Galactic executive, 35, have named him Bear Winslet, her rep confirms to Us Weekly.

Baby Bear joins half-siblings Mia Threapleton, 13, and Joe Mendes, 10, the British star's kids with ex-husbands Jim Threapleton and Sam Mendes, respectively.

For those bummed that the celeb tot didn't get the "Rocknroll" treatment, "bear" in mind that his father -- Richard Brandon's nephew -- was born Abel Smith, and officially changed his name a few years ago. He and Winslet married in a top-secret ceremony back in December 2012 after over a year of dating.

The Mildred Pierce star isn't the first Hollywood mom to go with "Bear" -- Alicia Silverstone named her son Bear Blu, now 2.