What is the name of the heaviest breed of dog?

The heaviest breeds of Dog in the World are (in no particular order):

1) Mastiff (175-190 lb)

2) Neapolitan Mastiff (110-150 lb)

3) Bullmastiff (90-130 lb)

4) Tibetan Mastiff (140-180 lb)

5) Newfoundland (110-150 lb)

6) St. Bernard (110-200 lb)

7) Great Swiss Mountain Dog (130-135 lb)

8) Pyrenean Mountain Dog (99-132 lb)

9) Komondor (80-135 lb)

10) Anatolian Karabash (90-141lb)