Snoopy is a beagle, according to multiple sources. While some people may think that Snoopy does not look like a beagle, he is a perfect portrayal of the standard breed in terms of his personality and behavior. Snoopy is known for being smart, playful, affectionate, and energetic at times, but also lethargic at times. He is also very imaginative and has a rich fantasy life. While there are other dogs that resemble Snoopy, such as Bayley the Mini Sheepadoodle, Snoopy himself is a beagle.