| Country | Diplomatic representation in the US |
| Kiribati | Kiribati does not have an embassy in the US; there is an honorary consulate in Honolulu |
| Korea, North | none; North Korea has a Permanent Mission to the UN in New York |
| Korea, South | chief of mission: Ambassador HAN Duck-soo chancery: 2450 Massachusetts Avenue NW, Washington, DC 20008 telephone: [1] (202) 939-5600 FAX: [1] (202) 387-0205 consulate(s) general: Agana (Guam), Atlanta, Boston, Chicago, Honolulu, Houston, Los Angeles, New York, San Francisco, Seattle |
| Kosovo | chief of mission: Ambassador (vacant); Charge d'Affaires Avni SPAHIU chancery: 900 19th Street, NW, Suite 400, Washington, DC 2006 telephone: 202-436-3581 |
| Kuwait |  chief of mission: Ambassador SALIM al-Abdallah al-Jabir al-Sabah chancery: 2940 Tilden Street NW, Washington, DC 20008 telephone: [1] (202) 966-0702 FAX: [1] (202) 364-2868 |
| Kyrgyzstan | chief of mission: Ambassador Zamira SYDYKOVA chancery: 2360 Massachusetts Ave. NW, Washington, DC 20008 telephone: [1] (202) 449-9822 FAX: [1] (202) 386-7550 consulate(s): New York |
| Laos | chief of mission: Ambassador PHIANE Philakone chancery: 2222 S Street NW, Washington, DC 20008 telephone: [1] (202) 332-6416 FAX: [1] (202) 332-4923 |
| Latvia | chief of mission: Ambassador Andrejs PILDEGOVICS chancery: 2306 Massachusetts Ave. NW, Washington, DC 20008 telephone: [1] (202) 328-2840 FAX: [1] (202) 328-2860 |
| Lebanon | chief of mission: Ambassador Antoine CHEDID chancery: 2560 28th Street NW, Washington, DC 20008 telephone: [1] (202) 939-6300 FAX: [1] (202) 939-6324 consulate(s) general: Detroit, New York, Los Angeles |
| Lesotho | chief of mission: Ambassador (vacant); Charge d'Affaires Mabasia MOHOBANE chancery: 2511 Massachusetts Avenue NW, Washington, DC 20008 telephone: [1] (202) 797-5533 through 5536 FAX: [1] (202) 234-6815 |
| Liberia | chief of mission: Ambassador Milton Nathaniel BARNES chancery: 5201 16th Street NW, Washington, DC 20011 telephone: [1] (202) 723-0437 FAX: [1] (202) 723-0436 consulate(s) general: New York |
| Libya | chief of mission: Ambassador Ali Suleiman AUJALI chancery: 2600 Virginia Avenue NW, Suite 705, Washington, DC 20037 telephone: [1] (202) 944-9601 FAX: [1] (202) 944-9060 |