"Variant of Gershon"
The name Gerson is commonly a male name from the "Biblical" origin.
Gerson is a variant of Gershon, the name borne in the Hebrew Bible by the eldest son of Levi (Exodus 6:16). The Gerson spelling is attested as a Jewish given name in medieval Europe, notably in the philosopher Levi ben Gerson, known as Gersonides, and it is also the form of the name used in Spanish and Portuguese.
Gershon means "Exile, to cast out, stranger. E".
The pronunciation of Gerson is GUR-sun.