Dr. Moira MacTaggert (sometimes spelled MacTaggart, McTaggart, McTaggert), more recently known as Moira X, is a fictional character appearing in American comic books published by Marvel Comics. She first appeared in The Uncanny X-Men #96 (Dec. 1975) and was created by writer Chris Claremont and artist Dave Cockrum. She works as a geneticist and is an expert in mutant affairs. She is most commonly in association with the X-Men and has been a member of the Muir Island X-Men team and Excalibur.
