Demetri \d(e)-met-ri, dem(e)-tri\ as a boy's name is a variant of Demetrius (Greek), and the meaning of Demetri is "follower of Demeter".
The baby name Demetri sounds like Demitri, Demetris and Demetrio. Other similar baby names are Demauri, Dmitri, Dimitri, Dimetre and Demetrice.