Meaning and name origin
Gabby \g(ab)-by\ as a boy's name is of Hebrew origin, and the meaning of Gabby is "man of God; my strength is God". Gabby is a variant of Gabriel (Hebrew): from Hebrew gheber "man", or gabar "strong", combined with el "god".
There is 1 feminine form of Gabby: Gabrielle.
Gabby is not a popular first name for males but a very popular surname or last name for all people (#43735 out of 88799, Top 49%) (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Gabby and its variant forms. The only popular variation form ranked in the Top 1000/100 is Gabriel (#24). (2014 statistics).