Chris is a long-running nickname used almost equally for boys and girls. While past its prime, Chris stands out as sounding completely appropriate for both sexes, perhaps because of its widespread use as a short form of both the popular Christopher and Christine. Chris manages to retain its crisp appeal even though its fashion moment is over.
Chris is one of the longest-running and still most appealing unisex short forms, still used nearly equally for boys and girls. Though no longer fashionable, Chris still feels crisp and appropriate for both sexes.