Nicknames:
Ty.
Famous people named Tycho:
Danish astronomer Tycho Brahe.
Fun fact:
In Dutch and Swedish, this name is pronounced TEE-ko, while in Danish it's pronounced TUY-go, and in English-speaking countries, it's most often pronounced TIE-ko.
More Inspiration:
150+ Boys Middle Names That Hit The Sweet Spot Of Unique And Traditional,