The Las Vegas star, 32, gave birth to son Meredith Daniel Mohr on Thursday, Mohr's rep confirms to Us Weekly. The newborn weighed in at 6 lbs. 7 oz.
Mohr, 40, and Cox tied the knot at the Hotel Bel-Air in L.A. on December 29, 2006. The pair met two years earlier when Mohr guest-starred on Las Vegas.