Boston terriers are not large dogs in nature. (11/15) by Judy Powell September 1, 2020, 11:36 am Credit Judy Powell 0 Previous 11/15 Next View full list See more Previous article An average lifespan of the Boston Terriers is between 11 to 15 years. In reality, all depends on the care and the living conditions of the dog. Next article The breed’s most memorable physical feature may be his blue-black tongue. Leave a Reply Cancel replyYour email address will not be published.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.