What was the name of the dog in Tom and Jerry? - briefly
The name of the dog in "Tom and Jerry" is Spike.
What was the name of the dog in Tom and Jerry? - in detail
In the classic animated series "Tom and Jerry," created by William Hanna and Joseph Barbera, there is no specific name given for the dog that occasionally appears alongside Tom and Jerry. The dog character is often referred to as "Spike" or "Killer" in various episodes, but these names are not consistently used throughout the series. The lack of a fixed name for this canine character reflects the dynamic nature of the show, where the focus is primarily on the cat-and-mouse chase and their slapstick humor. Despite not having an official name, the dog plays a significant role in many episodes by either assisting or hindering Tom's attempts to catch Jerry.