Surname Overview
Surname Status
The source explicitly lists “麒” as a currently uncommon surname and states that it is found today in places including Taiyuan and Changzhi in Shanxi. It does not specify an ethnic affiliation, so no ethnic classification is inferred.
Reference: 麒姓_麒姓的来源和历史_百家姓
Origins
Stage-Name Origin Theory
The source quotes China Surnames Complete as saying that “Qilintong” was also written “Qilingtong” and that the character 麒 was later used as a surname. However, the page immediately says “姑妄听之” and adds that it does not know whether anyone later bore 麒 as a surname. This is therefore only a possible stage-name-to-surname explanation, not an established origin or shared lineage.
Reference: 麒姓_麒姓的来源和历史_百家姓