The agency won the accounts without a pitch from the McCann Worldgroup-owned US agency Gotham.
Gotham was appointed on the brands, alongside the sister Waterford Crystal brand, just over a year ago. It will, however, continue to handle the Waterford global advertising and media account.
London Advertising will launch its first global campaign for the businesses next year. It will run across print, online, point-of-sale and outdoor.
WWRD Holdings was formed in March last year following the acquisition of Waterford Wedgwood by KPS Capital Partners for an undisclosed sum, after the china company went into administration.
Wedgwood was founded in the 18th Century but was acquired by the Waterford Glass Group in 1986.