Colcu

Colcu may refer to:


 * Colcu mac Domnaill (d. 580), king of Ailech
 * Colgú mac Faílbe Flaind (d. 678), king of Munster
 * Colcú mac Bressail (d.722), father of Áed mac Colggen, king of Leinster
 * Colcu ua Duinechda (d. 796), abbot of Clonmacnoise
 * Colcu mac Connacan (d. 884), abbot of Kinnitty
 * Çölçü, a 2012 Azerbaijani drama film