Düylün (also, Dyuglyun and Dyuylyun) is a village and municipality in the Ordubad District of Nakhchivan, Azerbaijan.

It is located in the near of the Ordubad-Nakhchivan highway, 17 km in the north-west from the district centre.

There are secondary school, library, culture house, mosque and pir (sanctuary) of the Middle Ages in the village.

The Sanctuary located in the centre of the cemetery in the south of the village, consist from a small room.

Researchers are believed that the sanctuary is one of the centres of the Sufism and have existed since before the 14th century.