| Hoopa Airport | |
| Faa: | O21 |
| Type: | Public |
| Operator: | Hoopa Valley Tribal Council |
| Location: | Hoopa, California |
| Elevation-F: | 356 |
| Elevation-M: | 108.5 |
| R1-Number: | 14/32 |
| R1-Length-F: | 2,325 |
| R1-Length-M: | 709 |
| R1-Surface: | Asphalt |
Hoopa Airport is a public airport located on Airport Road next to the Trinity River, one mile (1.6 km) southeast of Hoopa, serving Humboldt County, California, United States. It is mostly used for general aviation.
Hoopa Airport covers 40 acres and has one runway: