Jānis Endzelīns

{{short description|Latvian linguist (1873–1961)}}

{{Use dmy dates|date=February 2023}}

{{Expand language|topic=bio|langcode=lv|langcode2=ru|date=July 2024}}

{{Infobox person

| name = Jānis Endzelīns

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| native_name_lang = lv

| image = Jānis Endzelīns.jpg

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| birth_date = {{birth date|1873|2|22|df=yes}}

| birth_place = Kauguri parish, Governorate of Livonia, Russian Empire

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| death_date = {{Death date and age|1961|7|1|1873|2|22|df=yes}}

| death_place = Koknese, Latvian SSR, Soviet Union

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| nationality = Latvian

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| alma_mater = University of Dorpat

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| awards = Order of the Three Stars
Order of Lenin
Order of the Red Banner of Labour
Order of the Red Star
Order of the White Lion
Order of the Lithuanian Grand Duke Gediminas

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Jānis Endzelīns (22 February 1873 – 1 July 1961) was a Latvian linguist.

He graduated from the University of Tartu.{{cite book |last=Rožkalne |first=Anita |author2=LU literatūras |author3=folkloras un mākslas institūts |title=Latviešu rakstniecība biogrāfijās. |language=lv |publisher=Zinātne |location=Riga |year=2003 |isbn=9984-698-48-3 |oclc=54799673}} In 1908, he and Kārlis Mīlenbahs developed the modern Latvian alphabet, which slowly replaced the old orthography used before.{{cn|date=October 2024}}

He was elected a foreign member of the Royal Netherlands Academy of Arts and Sciences in 1936. His son was chess master Lūcijs Endzelīns.{{cite web|url=https://www.dwc.knaw.nl/biografie/pmknaw/?pagetype=authorDetail&aId=PE00000136 |title=J. Endzelin (1873–1961) |publisher=Royal Netherlands Academy of Arts and Sciences |access-date=4 August 2020}}