Globally, 腦 (腦 ) is an extremely rare unknown gender first name. Much more prevalently, 腦 is the last name as well as the forename.
Nao
殘粉 柯南君, 殘周神經, 殘詠遠不會悲傷, 殼遭門夾咯, 殼不想事, 袋涳椌, 電豐恒, 壳單邊, 殘 洧毐, 殘不醒世, 袋疼小盆友, 門 北窗逢擠了, 大生草, 氵每 木象陂檫, 袋被門夾了, and 海里的橡皮擦
) is an extremely rare unknown gender first name. Much more prevalently, 腦 is the last name as well as the forename.