Top 25 Longest Living Dog Breeds Post author By everyonelovesdogsadmin Post date August 16, 2016 No Comments on Top 25 Longest Living Dog Breeds 1> New Guinea Singing Dog: The New Guinea Singing Dog with its soulful looks is known to be the longest living dog breed. It has an average life expectancy of 18 years which can stretch to even 20 years as well. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ← Top 37 smartest dog breeds in the world → Caring for an English bulldog: Tips and Basic Info Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.