Michael "Sheeny Mike" Kurtz (c. 1845—November 24, 1904) was an American burglar and gang leader in New York City during the mid-to late 19th century. He was one of the co-founders of the Dutch Mob, along with Little Freddie and , during the 1870s. Kurtz and the others controlled the area between Houston and 5th Streets for several years until the gang was driven out by "strong-arm squads" under Captain Anthony Allaire in 1876. A year later he was arrested in Boston for robbing a silk house owned by Scott & Co. and sentenced to 12 years imprisonment. It was while in prison that he discovered that eating common soap could produce the effect of ill health. His sudden and unexplainable weight loss and other symptoms baffled the prison doctors and he was able to fool officials that he was dying