Mystical Ninja Starring Goemon is a platform action-adventure video game released by Konami for the Nintendo 64 on April 16, 1998 in North America as the fifth entry in the Ganbare Goemon series.

The story follows Goemon's struggles to prevent the Peach Mountain Shoguns gang from turning Japan into a Westernized fine arts theater. The plot calls for three cinematic musical features and battles between giant robots; like other Ganbare Goemon games, it is peppered with surrealist humor and anachronisms.

Mystical Ninja Starring Goemon sold nearly 200,000 copies worldwide. Reviewers praised its graphics, gameplay, and humorous plot.