Demokratia (デモクラティア) is a seinen manga written and illustrated Motorō Mase. Two scientists, Taku Maezawa and Hisashi Iguma, create a social experiment where a fembot, Maï, is to be democratically controlled by an assembly of 3000 random Internet users - for good or ill.

The manga was published from 2013 to 2015 in Big Comic Spirits and later collected in 5 volumes. The series was translated into French and Spanish.