Nonthaburi is a province where the Chao Phraya River crosses from north to south, and on the ground, the Chao Phraya giant catfish (Pangasius sanitwongsei) is the provincial aquatic life.

The provincial slogan translates to "Grand royal mansion, renowned Suan Somdet, Ko Kret's pottery, famous ancient temples, tasty durians, and the beautiful government office". The royal mansion refers to Phra Tamnak Nonthaburi