Joseph "Mad Dog" Taborsky (March 23, 1924 – May 17, 1960) was an American serial killer who was sentenced to death after a string of robberies and murders in Connecticut during the 1950s.

In 1957, Connecticut package store hours were modified to close from 8:00 p.m. to 11:00 p.m. in part as a response to the crimes of Taborsky and his partner Arthur "Meatball" Culombe.

Taborsky first came to Connecticut's death row for the 1950 murder of Louis Wolfson, a West Hartford liquor store owner, during a robbery.

In 1955, the Connecticut Supreme Court reversed Taborsky's conviction (and death sentence) because the sole witness against him - Albert - was incurably insane.

"[2] After his release from prison, Taborsky met another felon, Arthur "Meatball" Culombe, who would become his accomplice during the "Mad Dog Killings".

On May 17, 1960, Taborsky, who refused to appeal his new death sentence, died at age 36 in the electric chair for the "Mad Dog Killings".