| Port San Juan | |
|---|---|
 Port San Juan from Port Renfrew | |
  Port San Juan Location in British Columbia  Port San Juan Port San Juan (British Columbia)  Port San Juan Port San Juan (Canada) | |
| Location | Vancouver Island, British Columbia |
| Coordinates | 48°33′17″N 124°26′53″W / 48.55472°N 124.44806°W |
| Ocean/sea sources | Strait of Juan de Fuca Pacific Ocean |
| Settlements | Port Renfrew Gordon River 2 |
Port San Juan is an inlet along the Pacific coast of Vancouver Island in British Columbia, Canada. It was formed from the San Juan and Leech River faults which flank the northern and southern slopes of the San Juan Valley. The San Juan and Gordon rivers empty into the inlet from the northeast.
The town of Port Renfrew is located on the southern shore of Port San Juan, near the outlet of the San Juan River. The inlet can be accessed from Victoria via Highway 14, from Lake Cowichan via the Pacific Marine Circle Road, or by boat from the Strait of Juan de Fuca.