Sir Ian Livingstone is an English fantasy author and entrepreneur. Along with Steve Jackson, he is the co-founder of a series of role-playing gamebooks, Fighting Fantasy, and the author of many books within that series. He co-founded Games Workshop in 1975 and helped create Eidos Interactive as executive chairman of Eidos Plc in 1995.

Fighting Fantasy is a series of single-player role-playing gamebooks created by Steve Jackson and Ian Livingstone. The first volume in the series was published in paperback by Puffin in 1982.