"Devil" is not an official name (the creature lacks one) but is fitting as the creature is clearly meant to represent a Devil (small demonic creatures popularly believed to tempt people into doing evil - in fiction they are often opposed by an angel, representing a character's conceince).
"Devil" under the name "Devil Jerry" appears in the 2000 Game Boy Color videogame Tom & Jerry: Mouse Attacks! (Tom & Jerry in Mouse Attacks!) as the opposite of his benevolent counterpart named Angel Jerry and he is mean by his looks but not by his nature however.
"Devil" should not be confused with Satan - who (believe it or not) actually appeared in Tom & Jerry (in the form of a demonic Spike) during "Heavenly Puss" though this was actually a nightmare on Tom's half.