Granville Brothers Aircraft
| Company type | Aircraft Manufacturer | 
|---|---|
| Industry | Aviation | 
| Founded | 1929 | 
| Defunct | 1934 | 
| Fate | Bankrupt | 
| Successor | Granville, Miller & De Lackner | 
| Headquarters | Springfield, Massachusetts | 
Key people  | Zantford, Thomas, Robert, Mark, and Edward Granville | 
| Products | Aircraft | 
Number of employees  | 12 | 
Granville Brothers Aircraft was an aircraft manufacturer from 1929 until its bankruptcy in 1934 that was located at the Springfield Airport in Springfield, Massachusetts. The Granville Brothers—Zantford, Thomas, Robert, Mark and Edward—are best known for the three Gee Bee Super Sportster racers, the Models Z, R-1 and R-2. Prior to building aircraft, Zantford ran a mobile aircraft repair service.