What does Fitz mean?
Fitz /fitz/ as a boys' name is pronounced fits. It is of Old French origin, and the meaning of Fitz is "son of".
(male) Faitz, Fatz, ..
(female) Fity, Fitzia, ..
How popular is Fitz?
Fitz is an uncommonly occurring given name for males but a very prominent surname for all people (#8343 out of 150436, Top 6%). (2000 U.S. Census)
Prominent related forms of Fitz (not in Top 2000) rated in the Top 2000 are Fitzgerald and Fitzhugh. These forms of Fitz were favored by parents in the 1890s. Below is a graphed analysis of the usage of Fitz and related names. (2014 U.S. SSA Records)
Recommended names are Faiz, Fib, Fico, Fido, Fife, Fin, Finn▲, Firoz, Fish, Fisk, Fitch, Fonz, Frits, Fritz▼, Fritzi (see Frederick), Fritzl and Matz. These names tend to be more commonly used than Fitz.