Certain dog breeds, such as Greyhounds and Salukis, can run at speeds close to or slightly above 40 mph, making the claim that dogs can run 40 mph mostly accurate but breed-dependent.
Mostly True
Dogs can run 40mph.
How Fast Can Dogs Run? Running Speeds By Breed
Source: rover.com
At a glance
Verified August 12, 2025Key Evidence
Greyhounds can run up to 45 miles per hour on average, making them the fastest dog breed.
neewadogs.comneewadogs.comHow Fast Can Dogs Run? Fastest Dog Breeds
Breeds like Salukis and deerhounds can run about 40 mph.
petcube.competcube.comHow Fast Can A Dog Run?
Most dogs typically run between 15 to 30 mph depending on breed and size.
rover.comrover.comHow Fast Can Dogs Run? Running Speeds By Breed
caninejournal.comcaninejournal.comHow Fast Can A Dog Run? Average Dog Speed, Fastest Breeds & More
The reporting
What the Evidence Shows
The statement "Dogs can run 40 mph" is generally accurate but requires context regarding breed and individual capability. Most dogs run at speeds between 15 and 30 mph, but some specific breeds known for their speed can reach or exceed 40 mph. For example:
Greyhounds are widely recognized as the fastest dog breed, capable of running up to approximately 45 mph.
Other breeds with long legs and built for speed, such as Salukis, deerhounds, and vizslas, can also reach speeds around 40 mph.
However, the average dog does not reach these speeds; many common breeds run slower. Therefore, while the claim is true for certain breeds, it is not universally applicable to all dogs.
This nuance is important to avoid overgeneralization. The claim is "mostly true" because it accurately reflects the top speeds of the fastest dog breeds but does not represent the average dog's running speed.
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Verified Sources7
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