Ballincollig is a suburban town located within the administrative area of Cork city in the Munster region of Ireland. Situated on the western side of Cork city along the R608 road, the town sits beside the River Lee and lies approximately 8 km west of the city center, beyond the green belt from the suburbs of Bishopstown and Wilton.
The town has experienced significant growth in recent years as a satellite of Cork city. In 2016, it was recorded as the largest town in County Cork, with a population of 18,621 people in the Ballincollig Electoral Division. The area is historically notable for being home to the Ballincollig Royal Gunpowder Mills, which has since been converted into a Regional Park. In 2024, Ballincollig was named the tidiest town in Ireland.