Louis Buchalter, American mob boss (b. 1897)
Louis Buchalter, known as Louis Lepke or Lepke Buchalter, (February 6, 1897 – March 4, 1944) was an American mobster and head of the Mafia hit squad Murder, Inc., during the 1930s. Buchalter was one of the premier labor racketeers in New York City during that era.

Charles Birger and Buchalter are the only American mob bosses to receive the death penalty after being convicted of murder. Louis Buchalter was executed using the infamous "Old Sparky" electric chair after being sent "up the river" to Sing Sing Correctional Facility.