Nicknames:
You could go with Har, but ... meh.
Famous people named Harbor:
There are no famous people named Harbor. Yet.
Fun fact:
The world's largest harbor is in Shanghai, China.
More Inspiration:
Perfectly Patriotic Americana Baby Names, Big Apple Baby Names, Ahoy! Nautical-Inspired Baby Names, Wonderful Word Names Straight From The Dictionary, Terrific Two-Syllable Girl Names, Terrific Two-Syllable Boy Names, Unisex Names Perfect For Any Gender,