K USS "K-1" (SS-32) USS "K-2" (SS-33) USS "K-3" (SS-34) USS "K-4" (SS-35) USS "K-5" (SS-36) USS "K-6" (SS-37) USS "K-7" (SS-38) USS "K-8" (SS-39) USS "K. I. Luckenbach" (1917)
Ka USS "Kabout" (YTB-221) USS "Kadasahan Bay" (CVE-76) USS "Kailua" (IX-71) USS "Kaiser Wilhelm II" (ID 3004) USS "Kaiserin Auguste Victoria" (1905) USS "Kaita Bay" (CVE-78) USS "Kajeruna" (SP-389) USS "Kalamazoo" (1863, AOR-6) USS "Kalinin Bay" (CVE-68) USS "Kalispell" (YTB-784) USS "Kalk" (DD-170, DD-611) USS "Kalmia" (1863, AT-23, ATA-184) USS "Kaloli" (AOG-13) USS "Kamehameha" (SSBN-642) USS "Kamesit" (1919) USS "Kamishak" (AVP-44) USS "Kanaka" (YT-151) USS "Kanalku Bay" (CVE-77) USS "Kanawha" (1861, 1896, AO-1, AO-196) USS "Kanawha II" (SP-130) USS "Kane" (APD-18, AGS-27) USS "Kane County" (LST-853) USS "Kangaroo" (SP-1284, IX-121) USS "Kanised" (SP-439) USS "Kankakee" (AO-39) USS "Kansas" (1863, BB-21) USS "Kansas City" (CA-128, AOR-3) USS "Kapvik" (YO-155) USS "Karibou" (SP-200) USS "Karin" (AF-33) USS "Karnes" (APA-175) USS "Kasaan Bay" (CVE-69) USS "Kaskaskia" (AO-27) USS "Kasota" (YTB-222) USS "Katahdin" (1861, 1896) USS "Kate" (1864) USS "Katherine" (SP-715) USS "Katherine K." (SP-220) USS "Katherine W.