Brennschluss was a science fiction fanzine by Irene Gore, Ken Potter and Dave Wood.
Published in the UK, the first issue of Brennschluss appeared in October 1954. Issue 2 arrived in August 1955, with a special letters supplement published the same year. The third issue was published in April 1958, and the fourth in Spring 1969. The fifth issue was released in 1961, and was also included in the mail out of the Offtrails Magazine Publishers Association APA.
Contributors included Mal Ashworth, whose work was later included in the reprint zine Entropy, published by Terry Carr.