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.

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.

His sudden and unexplainable weight loss and other symptoms baffled the prison doctors and he was able to fool officials that he was dying and received a pardon.

He was associated with many underworld figures in New York including Billy Porter, Frank McCoy, "Banjo" Pete Emerson and criminal fence Marm Mandelbaum.

Kurtz and the others later testified that they had been hired to rob the saloon by David McAdams, New Jersey sportsman and manager of the Red Jacket Hotel, in exchange for a percentage of the $800 in cash.