I have seen a LOT of dog logos. One thing that is common is a dog silhouette. Sometimes this approach works, but sometimes you need more. Check out the custom dog illustrations that have been done below!
A Dog*Biz PARTNER SINCE 2013
I have been a referral partner for Dog*Biz since early in my Freelance designer career. I have easily done 200+ logos and websites for dog and pet-related businesses.