Places beginning with SI in Morobe, Papua New Guinea
Siaga
Sialum
Siang
Siang
Siapan
Sikam
Sikikia
Sikwong
Sililio
Silimana
Simbang
Simbeng
Singaua
Singeiapa
Singor
Singorokai
Sio 1
Sio 2
Sipa
Sipoma
Sisi
Siu
Siu
Sivebo
Siwea
Siyugei