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This category is within the scope of WikiProject Ethnic groups, a collaborative effort to improve the coverage of articles relating to ethnic groups, nationalities, and other cultural identities on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Ethnic groupsWikipedia:WikiProject Ethnic groupsTemplate:WikiProject Ethnic groupsEthnic groups
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This category was nominated for renaming on 17 October 2015. The result of the discussion was no consensus.
I don't particularly like the use of Category:Indo-European used to simultaneously denote an ethnicity and the field of Indo-European studies: currently it sits inside both Category:Historical linguistics and Category:Ethnic groups in Europe. My main issue is to discourage any resurrection of the "Indo-European race" concept, and make very clear that "Indo-European" as an ethnic marker is only really applicable to the Proto-Indo-European period, before widespread genetic interaction with other peoples.
I was thinking of creating a subcategory Category:Proto-Indo-Europeans to house all the articles specifically about recontructions of PIE life, language, etc., and move the "Ethnic groups" categorization down to there.