Is a Parson Terrier the same as a Jack Russell?

No, a Parson Terrier is not the same as a Jack Russell. However, the Parson Russell Terrier and  Jack Russell Terrier are closely related breeds, sharing a common ancestry and originating from the same line of terriers developed by Reverend Russell. 

Originally, both were known as Jack Russell Terriers, but over time, disagreements within the terrier community led to the emergence of two distinct types: the shorter-legged Jack Russell Terrier and the longer-legged Parson Russell Terrier. After a lawsuit , the Jack Russell Club of America claimed exclusive rights to the name ‘Jack Russell,’ fearing that American Kennel Club (AKC) recognition might dilute the working dog spirit of their line. In response, the AKC changed the name of their show line to the Parson Russell Terrier. While they share many physical traits, the Parson Russell Terrier and the Jack Russells are two distinct breeds.