Sagasi-Deybuk (Russian: Сагаси-Дейбук) is a rural locality (a selo) and the administrative centre of Sagasi-Deybuksky Selsoviet, Kayakentsky District, Republic of Dagestan, Russia.

[3] Sagasi-Deybuk is located 29 km northwest of Novokayakent (the district's administrative centre) by road.

Karanayaul and Pervomayskoye are the nearest rural localities.

[4] Dagins and Kumyks live there.

This Republic of Dagestan location article is a stub.