Marni (Clothing) Marni Is An Italian Fashion House Founded In 1994 By Consuelo Castiglioni. It Is Recognized Worldwide For Its Women's, Men's And Kid's Ready-To-Wear And Accessories Collections. Since 2012, Marni Has Been Part Of The OTB Group, Owned By Italian Entrepreneur Renzo Rosso. The name Marni originates from several languages, including Hebrew, meaning "rejoice", and ... Articles with short description.