Medium sized dog breeds
Not too big; not too small: These dogs are the definition of a happy medium, and probably why they show up on our list of most popular dogs year after year. Their playful and kind personalities make for excellent additions to families. Some are calmer by nature, like the Bulldog or the Whippet; others are more energetic like the Brittany or the Shetland Sheepdog. No matter what, they’re friendly and obedient, and love to please.