Kostar (Greek: Κωστάρι; romanized: Kostári) is a village in Vlorë County, southern Albania.

[1] At the 2015 local government reform it became part of the municipality of Delvinë.

[3] Kostar (Kostana) is recorded in the Ottoman defter of 1583 as a village in the Sanjak of Delvina with a total of 178 recorded male representatives, 150 of which were household heads and the remaining 28 being bachelors.

The overwhelming majority of anthroponymy recorded in the settlement belonged to the Albanian onomastic sphere (e.g., Gjon Pjetri, Gjin Pali, Dedë Bardhi, Lekë Kola), with a minority bearing general Christian personal names - some of which belonged to the Greek Orthodox sphere (e.g., Jano Dhimo, Andrea Dhima, Dhimo Ilia).

Two Muslims were also recorded among the inhabitants of the village: Murat Gjini, and Hasan Murati.