Kuysun (Russian: Куйсун; Lezgian: Къуюстан) is a rural locality (a selo) in Magaramkentsky District, Republic of Dagestan, Russia.

[3] Kuysun is located 188 southeast of Makhachkala.

Gilyar and Ledzhet are the nearest rural localities.

[4] Lezgins live there.

This Republic of Dagestan location article is a stub.