The first name Gigi is female and male.
The girl’s name Gigi is a diminutive of e.g. Virgine or Georgine and other names with the element “gi”. The boy’s name Gigi is a diminutive of the name Luigi.
Gigi means for girls “maid”, “virgin” (from Virginie) and “farmer”, “earthworker” (from Georgine). Gigi means for boys “famous warrior”.