| Names List: | USA-276 NROL-76 |
| Mission Type: | Radar imaging / Technology demonstration |
| Operator: | National Reconnaissance Office |
| Cospar Id: | 2017-022A |
| Manufacturer: | Bell Aerospace |
| Launch Date: | May 1, 2017, 7:15 am EST |
| Launch Rocket: | Falcon 9 Full Thrust |
| Launch Site: | Launch Pad 39A, Cape Canaveral Space Force Station, Florida, United States |
| Launch Contractor: | SpaceX |
| Orbit Regime: | Low Earth Orbit |
| Orbit Inclination: | ~50° |
USA-276, also known as NROL-76, is a classified spacecraft operated by the National Reconnaissance Office. Due to being classified, very little information is known about the satellite.
USA-276 was launched onboard Falcon 9 NROL-76. The Falcon 9 upper stage that carried USA-276 to its orbit made several close flybys of the ISS.