Cthuhlu was a science fiction, fantasy, and weird literature fanzine edited and published by Douglas R. Webster in Aberdeen, Scotland.
Cthulhu ran only one issue, published in Summer 1942.
Contributors included Eric C. Hopkins, John B. Michel, Eric S. Needham, Eric Frank Russell, Donald Raymond Smith, Douglas R. Webster, Christopher Samuel Youd (John Christopher), and a few others.
Webster's Cthulhu holds the dual distinction of being the first fanzine originating in Scotland, and the first publication to have H.P. Lovecraft's Cthulhu in its title.
Webster published fewer than 40 copies of Cthuthu #1, one copy each for a "limited clientele" of his choosing (recipients listed in full on page one).