Jimmy is a male given name of Hebrew origin. It is a diminutive form of the given name James, along with its short form, Jim. Both can also be used as the adaptation into English of the popular modern Greek name Dimitris (Δημήτρης) or the older Dimitrios (Demetrius), especially amongst Greek immigrants in English-speaking countries, due the similarity in the sound of the nickname Ντίμης/Dimi and Jimmy.
https://en.m.wikipedia.org/wiki/Jimmy_(given_name)

