The English name for Qırımtatarca in Wikidata is given as "Crimean Turkish", but "Crimean Tatar" is the preferred name in English.
The English Wikipedia page on the language has "Crimean Tatar language" as its title (noting "also called Crimean Turkish"). Ethnologue lists "Crimean Tatar" as the main name, as does the Library of Congress Subject Headings.
CLDR incorrectly uses "Crimean Turkish" and a ticket has been opened upstream; however, they move very slowly, and a local override until CLDR is corrected would be much appreciated.
See more discussion here: https://www.wikidata.org/wiki/Wikidata:Project_chat#The_Crimean_Tatar_language
See also T189511 for a similar request for Mediawiki.