Definition of "Otherkin"

Some elves claim to be allergic to iron and other products of encroaching modernity, while one breed of Otherkin—dragons in human bodies—insist that having no allergies is a sign of Otherness.

2001 February 13, Nick Mamatas, “Elven Like Me”, in The Village Voice‎, archived from the original on 16 May 2015

The living Otherkin are a loosely affiliated group of mostly young people who believe themselves to be magical and spiritual creatures: elves, werewolves, dragons, fairies, angels, hobbits.

2005 October 4, Christine Wicker, Not in Kansas Anymore: A Curious Tale of How Magic is Transforming America, 1st edition, New York: HarperCollins, page 240

Another is that I myself identify as Otherkin—a wolf therianthrope, to be exact—and I find this particular subculture to be absolutely fascinating.

2007 April 20, Lupa, A Field Guide to Otherkin, 1st edition, Stafford: Megalithica Books, page 18

In an archaically bound volume, Gibson explores the affirmation of the Otherkin community (who identify as partially or wholly animal) through the collation of visuals from mainstream culture, including Instagram filters and computer game clips.

2020 September 16, Hannah Clugston, “Soft Bodies review – tech simulations of life's squishy stuff”, in The Guardian‎