Atavachron was a newsletter published by The United Federation of Canadian Star Trekkers.
Published in Victoria, British Columbia, Canada, Atavachron was devoted to the television series Star Trek, and was edited by Alistair Craig, John Willcox Herbert, and Terry Wyatt. It was released in the mid 1980s till 1993.
Contributors of writing included Betty Bigelow, David Gordon-MacDonald (The Central Ganglion), Paula Johanson (The Central Ganglion), Bernie Klassen (The Central Ganglion), Amy Morgan, Andrew C. Murdoch, Ray Seredin, and Garth Spencer (The Maple Leaf Rag, The Central Ganglion).
Contributors of art work included Warren Oddsson, among others.
John W. Herbert later co-edited Under The Ozone Hole with Karl Johanson.