| Rockdale, New York | |
| Settlement Type: | Hamlet |
| Pushpin Map: | New York |
| Pushpin Label: | Rockdale |
| Pushpin Map Caption: | Location in the state of New York |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Chenango |
| Subdivision Type3: | Town |
| Subdivision Name3: | Guilford |
| Unit Pref: | Imperial |
| Coordinates: | 42.3781°N -75.4078°W |
Rockdale is a hamlet in the town of Guilford, Chenango County, New York, United States. It is located on the Unadilla River, a southward-flowing tributary of the Susquehanna River.
It is the location of the Rockdale Community Church, added to the National Register of Historic Places in 2005.
In the novel Atlas Shrugged by Ayn Rand, several chapters take place at the fictional "Rockdale railway station" and at an estate five miles from the town.