Tortoise is a perzine by Sue Jones, published in Shrewsbury, Shropshire, UK.
The first issue of Tortoise was released in August 1998. As of Spring 2006, 22 issues had appeared.
Although Tortoise is a perzine, it circulates within the science fiction fanzine community. Each issue is themed. Included are articles, a large letters column, and of course art work, since Sue Jones is an artist.
Contributors include Andrew Butler, and Graham Higgins.
Paul Kincaid, in his review of issue 2, writes, "Sue's writing is warm and involving, though there are times when you cry out for more detail... But there is, underlying it, a delightful whiff of the bizarre, such as the passing reference: 'No Real Martians on Real Mars: what does this mean for Imaginary Martians?', or, even better, the wonderfully idiosyncratic article 'Encs' about a superior Victorian ink that drove mice crazy. This is about as imaginative a piece as you will find in any of these fanzines. And isn't imagination why we're all here?"