Demétrius Montanini
Demétrius Montanini (born 18 March 1971), simply known as Demétrius, is a retired Brazilian professional footballer who played as a striker.

Demétrius was part of the Campomaiorense side who reached the final of the 1998–99 Taça de Portugal.

Honours
Remo
 Campeonato Paraense: 1995

Campomaiorense
 Taça de Portugal: Runner-up 1998–99

Boavista
 Primeira Liga: 2000–01