- K ... Kaba lock
- Kaba, Mount ... Kachchh, Rann of
- Kachchhi language ... Kaffa
- Kaffeklubben Island ... Kahn, Louis Isadore
- Kahn, Madeline ... Kaiser Wilhelm Society for the Promotion of Sciences
- Kaiser, Georg ... Kalaburagi
- Kalach-na-Donu ... Kalika alphabet
- Kalikata ... Kalookan
- Kalosoyi, Antoine ... Kambujasuriya
- Kambujia ... Kammerer, Paul
- Kammergericht ... Kananaios
- Kananga ... Kangchenjunga
- Kangde ... Kanoldt, Alexander
- kanōn ... Kanvayanas
- Kanwar, Roop ... kapok
- kapok family ... Karaganda
- Karaganda ... Karatsu
- Karatsu ware ... Karkavítsas, Andréas
- Karkh, Al- ... K?rnan
- Karnaphuli River ... Kartuli ena
- Kartveli ... kashrut
- kashruth ... katakana
- Katanga ... Kato, David
- Katona, József ... Kaufmann, Edgar J., Sr.
- Kaufmann, Jonas ... Kawaíb
- Kawaihae ... Kazak literature
- Kazakh ... Kean, Edmund
- Kean, Ellen ... Keene, Carolyn
- Keene, Charles Samuel ... keitou
- Keiyō Industrial Zone ... Kelly Air Base
- Kelly’s Heroes ... Kemble, Frances Ann
- Kemble, George Stephen ... Kenem
- Kenema ... Kennewick Man
- Kenney Dam ... Kenya Federation of Labour
- Kenya National Archives and Documentation Service ... Kerber, Angelique
- Kerberos ... Kerr, Deborah
- Kerr, Jean Collins ... Keter Torah
- ketjak ... Key, Valdimer Orlando, Jr.
- key-currency principle ... Khai Dinh
- Khaibar Pass ... Khambula, Battle of
- Khamenei, Ali ... Khārān
- Khārān Kalāt ... Khayr al-Dīn
- Khayr al-Dīn ... Khmu language
- Khmuic languages ... Khowari language
- Khowsgol Mountains ... Khwāja Mu?in al-Din ?asan
- Khwājū Kermānī ... Kid with a Bike, The
- Kid, The ... Kigeri Rwabugiri
- Kigezi Gorilla Game Reserve ... Killaloe
- Killanin of Galway, Michael Morris, 3rd Baron ... Kim ?k
- Kim Ok-Kyun ... Kinck, Hans E.
- Kinck, Hans Ernst ... king bird-of-paradise
- King Carl ... King v. Burwell
- king vulture ... King, Queen, Knave
- King, Richard ... Kingsport
- Kingston ... Kinski Uncut
- Kinski, Klaus ... Kiribati, Republic of
- Kirid ... Kirshner, Sidney
- Kirst, Hans Hellmut ... Kissimmee River
- kissing bug ... Kitami
- Kitami Mountains ... Kiwanuku, Saint Achilles
- kiwi ... Klavierspielerin, Die
- Klavierstück XI ... Klick, Frankie
- Klieg light ... Klumpke, Anna
- Klushino, Battle of ... Knight of the Cart, The
- Knight Ridder Newspapers ... knockout
- knockout mouse ... Knudsen gas
- Knudsen, Erik ... Kobus leche smithemani
- Kobus megaceros ... Kodiyettam
- kodjabashi ... Kohn, Fritz Nathan
- Kohn, Walter ... Kol Nidre
- Kol Nidre, Opus 39 ... Koloman
- Kolombangara, Battle of ... Kommamur Canal
- Kommanditgesellschaft ... Kongeriket Norge
- Kongfuzi ... Konqi River
- Konrad der Jüngere ... Kopeysk
- Kopf, Der ... Korean Air Lines flight 007
- Korean alphabet ... Kororofa
- Koro?ec, Anton ... Kosmos 2251
- kosode ... kotoite
- Kotoko ... Koxinga
- Kōya, Mount ... Krall, Diana
- Kraly, Hans ... Kravanh Mountains
- Kravchuk, Leonid ... Kriegs Akademie
- Kriegsmarine ... Kriyā-tantra
- Kri?ani?, Juraj ... Kru
- Kru languages ... Kshesinskaya, Mathilda-Maria Feliksovna
- Kshessinska, Mathilde ... Kucha
- Kuchan ... Kuibyshev
- Kuibyshev ... Külso-Somogy
- kultar ... Kun, Béla
- Kuna ... Kunstkammer
- Kunstkammern ... Küre Mountains
- Kürenberger, Der ... Kuruksetra
- Kurukshetra ... Kutch, Rann of
- Kutchchi language ... Kvirikashvili, Giorgi
- Kwa language ... Kyl, Jon Llewellyn
- Kyle ... Kzyl-Orda
