'B' (i) was an Italian unrealised naval minelaying operation designed to protect the approaches to Benghazi harbour in Italian North Africa (12/14 October 1941).

The operation would have involved the light cruisers Emanuele Filiberto Duca d’Aosta, Eugenio di Savoia and Raimondo Montecuccoli, supported by the destroyers Ugolini Vivaldi, Lanzerotto Malocello, Antonio Pigafetta, Giovanni di Varazzano, Aviere and Camicia Nera, but was aborted for lack of timely reconnaissance information about the movements and strength of Admiral Sir Andrew Cunningham’s Mediterranean Fleet.