Sebastia

Sebastia (also Sebastea, Sebasteia; Greek Σεβαστεία) may refer to:


 * Sebastia, Nablus, a Palestinian village in the West Bank
 * Sivas (Sebasteia), an Ancient Roman Armenian city, now Sivas in Turkey
 * Sebasteia (theme), a Byzantine province named after the city
 * Malatia-Sebastia District, in Yerevan, Armenia
 * Sebastia (moth), a moth genus