10 Messiest Dog Breeds Mastiff. ... Collie. ... Spinone Italiano. ... Border Collie. ... Samoyed. ... Bulldog. ... Dogue de Bordeaux. Known as the drooling, messy "Hooch" in the Tom Hanks' film Turner and Hooch, the Dogue de Bordeaux is a French breed with a powerful, muscular build and massive head. ... Siberian Husky. More items... 17 Jan 2014