• Baarslag, K. 1 n
• Babcock, W. H. 1 n
• Baird, Spencer Fullerton 1, 2, 3
• Bajau 1
• Baker, Henry 1
• Ballantyne, R. M. 1
• Ballard, Robert 1, 2, 3, 4, 5, 6, 7
• Bangladeshi pirates 1
• Barrow, John D. 1 n
• Barton, Otis 1
• basnig 1
• Bathurst, Bella 1
• Bathybius haeckelii 1
• bathyscaphe 1
• bathysphere 1, 2
• bats 1
• beachcombing 1
• Beacon, HMS 1
• Beagle HMS 1
• Bedouin 1, 2, 3
• Beebe, William 1, 2, 3, 4, 5, 6
• Bering Sea 1, 2, 3
• BGN/ACUF 1
• bioluminescence 1, 2, 3, 4, 5
• Bismarck 1
• Blackbeard 1
• Blackburn, Lt-Cdr John 1
• ‘black smokers’ 1 n, 2, 3
• bleach (illegal fishing) 1
• Bligh, Capt. William 1
• ‘blinders’ 1
• bootleggers (liquor, West Virginia) 1
• Boracay Is. 1
• Bournemouth 1
• Bowfin, USS 1, 2, 3
• branchial clefts 1
• Brasil Is. 1, 2
• buccaneers, homosexual 1
• Buchanan, John 1
• Buckland, William 1, 2, 3
• Budge, E. A. Wallis 1 n
• Buffon, Comte de 1
• buli-buli 1
• Bulldog, HMS 1
• Burg, B. R. 1 n
• Burgess Shale 1
• Bush, George 1 n
• Buss Is. 1, 2, 3