USS "Blount" () USS "Blower" (SS-325) USS "Blue" (DD-387, DD-744) USS "Blue Bird" (MSC-95, MSC-121) USS "Blue Dolphin" () USS "Blue Jacket" () USS "Blue Jay" () USS "Blue Light" () USS "Blue Ridge" (1918, AGC-2, LCC-19) USS "Blueback" (SS-326, SS-581) USS "Bluebird" (, , ) USS "Bluefish" (SS-222, SSN-675) USS "Bluegill" (SS-242) USS "Bluffton" ()
Bo-Br USS "Boarfish" (SS-327) USNS "Bob Hope" (T-AKR-300) USS "Bobby" () USS "Bobolink" (, ) USS "Bobylu" () USS "Bocaccio" () USS "Bocachee" () USS "Boggs" () USS "Bogue" (CVE-9) USS "Boise" (CL-47, SSN-764) USS "Bold" (, MSO-424, AGOS-12) USS "Bolinas" (CVE-36) USS "Bolivar" () USS "Bollinger" (LPA-234) USS "Bolster" (ARS-38) USS "Bomazeen" () USS "Bombard" () USS "Bon Homme Richard" (CVA-31) USS "Bonaci" () USS "Bond" () USS "Bondia" (AF-42) USS "Bonefish" (SS-223, SS-582) USS "Bonhomme Richard" (1765, CVA-31, LHD-6) USS "Bonita" (SS-15, SP-540, SS-165, SSK-3/SS-552) USS "Bonito" (1846) USS "Boone" (FFG-28) USS "Boone County" (LST-389) USS "Bootes" () USS "Booth" (FF-170) USS "Bordelon" (DD-881) USS "Boreas" () USS "Borer" () USS "Borie" (DD-215, DD-704) USS "Borum" (DE-790) USS "Bosque" () USS "Boston" (1776, 1776, 1799, 1825, 1884, CA-69, SSN-703) USS "Boston Salvor" () USS "Bostwick" () USS "Botetourt" () USS "Bottineau"