Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/extinct> ?o. }
- Kayeli_language extinct "1989".
- Kazukuru_language extinct "early 20th century".
- Kemi_Sami_language extinct "ca. 1900".
- Kenaboi_language extinct "attested ca. 1880".
- Kenai_Peninsula_wolf extinct "1925".
- Kepkiriwát_language extinct "?".
- Kerek_language extinct "ca. 2000".
- Ketagalan_language extinct "?".
- Khazar_language extinct "by the 13th century".
- Khitan_language extinct "c. 1243".
- Kilit_dialect extinct "20".
- King_Island_Emu extinct "1822".
- Kings_River_Yokuts extinct "?".
- Kioea extinct "mid-19th century".
- Kipea_language extinct "mid 20th century".
- Kitanemuk_language extinct "1940.0".
- Kitsai_language extinct "1930.0".
- Klallam_language extinct "2014-02-04".
- Klamath_language extinct "2003".
- Knaanic_language extinct Late_Middle_Ages.
- Koeruna_language extinct "?".
- Koihoma_language extinct "?".
- Kok-Nar_language extinct "?".
- Konomihu_language extinct "?".
- Koropó_language extinct "?".
- Kosrae_Crake extinct "mid-19th. century".
- Kosrae_Starling extinct "mid 19th. century".
- Kott_language extinct "19".
- Kpati_language extinct "?".
- Krevinian_dialect extinct "19".
- Kreye_language extinct "ca. 2010".
- Kubi_language extinct "?".
- Kungarakany_language extinct "1989".
- Kungardutyi_language extinct "?".
- Kungkari_language extinct "?".
- Kunza_language extinct "1950.0".
- Kureinji_language extinct "?".
- Kuthant_language extinct "?".
- Kuuk_Yak_language extinct "?".
- Kuurn_Kopan_Noot_language extinct "?".
- Kw'adza_language extinct "late 20th century".
- Kwadi_language extinct "ca. 1950 ?".
- Kwalhioqua-Clatskanie_language extinct "before 1930".
- Kwisi_people extinct "ca. 1970?".
- Kyakhta_Russian–Chinese_Pidgin extinct "early 20th century".
- Kāmaʻo extinct "1989".
- La_Palma_giant_lizard extinct "may be extinct but not confirmed".
- Labrador_Duck extinct "c. 1878".
- Labrador_Inuit_Pidgin_French extinct "About 1760.".
- Laghu_language extinct "1984".
- Laiuse_Romani_language extinct "ca. 1940".
- Lake_Pedder_earthworm extinct "1972".
- Lala_language_(South_Africa) extinct "?".
- Lamona extinct "No, One or even two flocks were found in 2005 and preferred to stay anonymous.".
- Lapachu_language extinct "?".
- Large_Palau_flying_fox extinct "1874".
- Laua_language extinct "ca. 2000".
- Laughing_Owl extinct "1914".
- Laurentian_language extinct "late 16th century".
- Laysan_Honeycreeper extinct "1923".
- Laysan_Millerbird extinct "1910.0".
- Laysan_Rail extinct "1944".
- Ledji-Ledji_language extinct "?".
- Lelak_language extinct "?".
- Lemnian_language extinct "attested 6th century BC".
- Leptofoenus_pittfieldae extinct "yes".
- Lesser_Antillean_Macaw extinct "shortly after 1760".
- Lesser_bilby extinct "1950.0".
- Lesser_stick-nest_rat extinct "1933".
- Blackhouse_Tasmanian_language extinct "19".
- Liburnian_language extinct "Late Antiquity".
- Limilngan_language extinct "ca. 1990–2000".
- Linngithigh_dialect extinct "?".
- Lipan_language extinct "?".
- List_of_Nuragic_tribes extinct "c. 2nd century AD".
- Little_Swan_Island_hutia extinct "1955".
- Little_Swanport_language extinct "19".
- Livonian_language extinct "2013".
- Long-tailed_hopping_mouse extinct "1901".
- Longjaw_cisco extinct "1975".
- Lord_Howe_Fantail extinct "c.1925".
- Lord_Howe_Parakeet extinct "1869".
- Lord_Howe_Starling extinct "1919".
- Lord_Howe_Swamphen extinct "early 19th century".
- Loun_language extinct "?".
- Loup_language extinct "18".
- Lower_Burdekin_languages extinct "ca. 1900".
- Lower_Chehalis_language extinct "?".
- Lower_Nossob_language extinct "?".
- Lummi_dialect extinct "c. 2000".
- Lusitanian_language extinct "2".
- Luthigh_language extinct "?".
- Luwian_language extinct "around 600 BC".
- Macaguaje_language extinct "?".
- Maclear's_rat extinct "1903".
- Macquarie_Parakeet extinct "1891".
- Madeiran_Wood_Pigeon extinct "1924".
- Madhi_Madhi_language extinct "late 20th century".
- Magadhi_Prakrit extinct "developed into Magadhi".
- Mahican_language extinct "ca. 1940".