| Onyx Hotel | |
| Building Type: | Hotel |
| Address: | 852 5th Avenue |
| Location City: | San Diego |
| Location Country: | United States |
| Coordinates: | 32.7144°N -117.1603°W |
| Opened Date: | 1910 |
| Destruction Date: | --> |
| Unit Count: | --> |
The Onyx Hotel is a historic building located at 852 5th Avenue in San Diego's Gaslamp Quarter, in the U.S. state of California. It was built in 1910.