I know that great danes are the tallest, but what is the overall, largest, bulkiest dog?

I think Chesapeake Bays.My friend owns 3 of them and they're like miniature show horses.

English Mastiff

English Mastiffs

i think it's the newfoundland

Irish Wolfhound

not chesapeake bays, they are about the same size as black labs--english mastiffs are the largest. A englich mastiff named hercules holds the record for the largest dog in the world currently.

Mastiffs, Great Danes, and Saint Bernards are all very large dog breeds. However, I think the Borezoid is the largest. It is very lanky and tall.