Etherline was an Australian science fiction newsletter published in two series, the first covering issues 1-100 was released between 1953 and 1958, and the second, Etherline II beginning in 1968.
From 1953 till 1958,Etherline was edited and published in Melbourne by Leo J. Harding (later known as Lee Harding), Ian Crozier, and Mervyn Binns. Artists included Ditmar "Dick" Jenssen.
Race Mathews writes, "Etherline - a newszine produced largely on a collective basis - established what may well have been a record for the fan publishing circles of the day, by appearing regularly at fortnightly intervals for 100 issues, from 1953 until 1958.
Etherline was one of five publications that members of the Melbourne Science Fiction Group created, the others being Bacchanalia, Perhaps, Question Mark and Antipodes, all made possible by the Amateur Fantasy Publications of Australia.