| Coolderry | |
| Native Name: | Irish: Cúl Doire |
| Native Name Lang: | ga |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Leinster |
| Subdivision Type3: | County |
| Subdivision Name3: | County Offaly |
| Unit Pref: | Metric |
| Population As Of: | 2006 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 53°N -7.78°W |
| Elevation M: | 88 |
| Blank Name: | Irish Grid Reference |
Coolderry [1] is a small roadside village in southern County Offaly, Ireland. It is located 8 kilometres north of Roscrea and 11 kilometres south of Birr. The village lies close to the Slieve Bloom Mountains.
Places of note include Gloster House and Leap Castle.
Coolderry contains a number of facilities including a Roman Catholic church, Coolderry National School, a community hall and a GAA facility.
In the 2006 Census, the electoral division of Ettagh, in which Coolderry is located, had a population of 433. Coolderry village itself has a population of around 80.
Coolderry is home to Coolderry GAA, the most successful hurling side in Offaly with 31 Offaly Senior Hurling Championship titles and 1 Leinster Senior Hurling Championship title.