| Union Seamount | |
| Pushpin Map: | Canada British Columbia geo |
| Label: | Union Seamount |
| Marksize: | 18 |
| Depth: | 2930NaN0 |
| Location: | North Pacific Ocean |
| Coordinates: | 49.5833°N -177°W |
| Country: | Canada |
The Union Seamount is a seamount located in the Pacific Ocean off the coast of northern Vancouver Island, British Columbia, Canada.