The B class was a class of nine destroyers of the Royal Navy, launched in 1930. The class was similar to the A class with minor modifications. They served in World War II and five were sunk in combat.

General characteristics

• Displacement: 1,360 tons
• Length: 323 ft (98.5 m)
• Complement: 138
• Armament: four 4.7 inch (120 mm) guns; two 2-pounder anti-aircraft; eight 21 inch (530 mm) torpedo tubes
• Speed: 35.25 knots (65.28 km/h)
• Propulsion: Geared turbines, 2 shafts; 34,000 hp (25.4 MW)

Ships

• Basilisk, launched on 6 August 1930, sunk by Ju87 dive-bombers off Dunkirk, France during Operation Dynamo on 1 June 1940.
• Beagle, launched on 29 September 1930.
• Blanche, launched on 29 May 1930, sunk by a mine on 13 November 1939.
• Boadicea, launched on 23 September 1930, sunk by air attack off Portland during Operation Overlord on 13 June 1944.
• Boreas, launched on 18 July 1930, loaned to Greece in 1944 and renamed Salamis.
• Brazen, launched on 25 July 1930, sunk by air attack off Dover on 20 July 1940.
• Brilliant, launched on 9 October 1930.
• Bulldog, launched on 6 December 1930.
• Keith, launched on 10 July 1930, sunk by Ju87 dive-bombers off Dunkirk, France during Operation Dynamo on 1 June 1940.