Tolkien fandom is an international, informal community of fans of the works of J. R. R. Tolkien, especially of the Middle-earth legendarium which includes The Hobbit, The Lord of the Rings, and The Silmarillion. "Fandom" implies a subculture marked by youthful enthusiasm but comparatively little sophistication compared to scholarly literary criticism and thus marks the popular aspect of the general topic of the reception of J. R. R. Tolkien. "Tolkien fandom" in this sense sprang up in the USA in the 1960s, in the context of the hippie movement, to the dismay of the author (Tolkien died in 1973), who talked of "my deplorable cultus".
A Tolkienist is someone who studies the work of J. R. R. Tolkien: this usually refers to students of the Elvish languages and "Tolkienology". The term Ringer refers to a fan of The Lord of the Rings in general, and of Peter Jackson's live-action film trilogy in particular. Other terms describing Tolkien fans include Tolkienite or Tolkiendil.
Read more about Tolkien Fandom: History, Tolkienology