Jabot: The apron of the Schipperke; the part situated between the front legs.

Jack Russell Terrier: A terrier originating in England, having a small sturdy body, straight legs, and a smooth, mostly white coat that has brown or black markings.

Jacobsens Organ: A sense organ located in the roof of the dog's mouth that functions somewhere between smell and taste.

Jowls: Flesh of the lips and jaws.