Harvey Weinstein and his Marchesa fashion-designer wife, Georgina Chapman, have settled on a name for their newborn son — Dashiell Max Robert. A source tells Page Six the baby’s first name was inspired by “The Thin Man” novelist Dashiell Hammett, because “when Harvey first met Georgina, he said she reminded him of [the ‘Thin Man’ character] Nora Charles . . . She was so beautiful, and so clumsy.” Max, meanwhile, was the name of Weinstein’s father, after whom the last half of his and brother Bob’s famous former company, Miramax, was named. Dashiell was born last week and is the couple’s first son. Weinstein has four daughters — India Pearl with Chapman, and Emma, Lily and Ruth from a previous marriage.